Mendes: "I'm a very spontaneous person. When I see something that might be fun or different, I will try it."

Mendes: "I promise you, if you look at YouTube and see some of my first covers, you will hear that I don't sound good. But I was so obsessed with it and wanted so much to be good at it that I forced myself to figure out what sounds right and what sounds wrong."

Mendes: "I'm tortured because I care. I'm always upset about not doing things as good as I think I could have because I care."

Mendes: "I'm 100 per cent involved in everything that happens with my name, and I think if you're not, then there's something wrong."

Mendes: "Always tryna put your two cents in, then expecting me to change."

Mendes: "You can’t get too comfortable and relax, because your world can flip overnight."

Mendes: "When I first started playing guitar, so many people told me I couldn't do this or couldn't do that. But I kept at it and ignored that."

Mendes: "I was super-obsessed with cover videos. When I was, like, 10, I would come home from school and watch them from 4 o'clock until 8 o'clock every night. I was so intrigued that people took these super-popular songs and did them their own way."

Mendes: "Ed Sheeran wrote his songs, so I wanted to write my own songs."

Mendes: "I was an average student. I wasn't any standout. I remember when people started to know who I was and the label offers, people started to get a little weird and be weird around me."

Mendes: "There's nothing that scares me more than, like, being in the ocean by myself."

Mendes: "I think the world is becoming a place where younger and younger people can do great things, and I just hope I can inspire other young people to do the same."

Mendes: “I have a thing where if I’m not in control, I feel the whole world is about to collapse.”

Mendes: "I picture myself now, and I picture myself in 30 years, and I'll probably be the same. I'll still think I'm not the greatest singer I can be."

Mendes: "I think anyone can do anything they dream of if they put their mind to it and put in the work."

Mendes: "I feel like every time I write a song, it feels like the first time I wrote a song. It's just as hard; it doesn't get easier, but that's why I love it: because it's a challenge every time. I also feel like I'm learning new ways."

Mendes: "My advice to anyone with a dream is to never stop pursuing it."

Mendes: "I think I was just bored one summer afternoon, and I decided to post a little video of me singing and playing guitar out of tune."

Mendes: "I wanted to be an actor, like, so, so bad. I took acting classes, I auditioned for Disney, and then I realized how nervous I got with remembering lines."

Mendes: "You have to work the crowd."

Mendes: "Love is probably the strongest emotion that you can feel. It's very natural - and I wouldn't want to say easy - but natural and comfortable to write about, and there's so many different forms of it, millions of layers - you could write forever about it."

Mendes: "I don't really look into the past too much."

Mendes: "As I'm growing, so is my music."

Mendes: "I work so hard to make that sure I'm successful. If you're positive and really excited and enthusiastic about what you're doing, it's going to happen, and it's going to happen big time."

Mendes: "I promise you, if you look at YouTube and see some of my first covers, you will hear that I don't sound good. But I was so obsessed with it and wanted so much to be good at it that I forced myself to figure out what sounds right and what sounds wrong."

Mendes: "You can't take my youth away. This soul of mine will never break."

Mendes: "Honestly, the more things start to get bigger and better, the more I am just inspired to work harder and put my music out there and make better music and keep everything going."

Mendes: "I'm not the best singer in the world; I'm just good at picking up what I want to sound like."

Mendes: "I'm always wanting to spread as much positivity as possible, so I really try to keep that the case with my fans and with the campaigns that I do."

Mendes: "I'm still a little certain I'm a wizard."

Mendes: "I'm writing all the time, really. It's become a little bit of a problem when I go home. Sometimes I should really go out and hang out with my friends, but what happens is I get really inspired and then just go and mess around on the computer."

Mendes: "You look back at people like Elvis and The Beatles and still get their music because it's timeless. That's what I want."

Mendes: "There's a lot more to success than just singing."

Mendes: "Island Records was the first record label to... acknowledge me. After that, quickly, Republic Records, and then Atlantic Records, Sony Records and Warner Bros. It was all the labels at once. It was absolutely insane, like, knowing that this many record labels were interested in me."

Mendes: "The people who are No. 1 are No. 1 for a reason."

Mendes: "So many of my songs are based on things that either happened to me or to someone I know, but there are also ones where I've written a made-up story. All of them are about very real emotions, and I just find different ways to express them."

Mendes: "I'm very, very amateur, which is funny because I'm not in the amateur leagues."

Mendes: “It’s hard for me to just say, ‘Wow, this is amazing – I’m famous. I’m living the dream.’ I sit there and think, ‘I’m scared – this can go away tomorrow.’ My dad always says that I’m a tortured soul because I’m never pleased; I never feel like I deserve what I’ve achieved.”

Mendes: "I felt like there were so many talented people who should be getting what I have."

Mendes: "Sometimes when the song is right for that time period, it's just kinda bad to let it wait, and then when you do release it eight months down the road, it's not the same."

Mendes: "I have a song called 'I Don't Even Know Your Name' which I think is going to be well liked across the board."

[On Camila]

Mendes: "I'm like 'what are you listening to?' and she starts playing The Beach Boys, and Frankie Valli, and The Beatles, and she plays 'Can't Take My Eyes Off Of You,' and I was listening and I just got these chills down my body, I was like 'this is it,' you know, this big massive feeling, these drum fills, the 60's..."

Mendes: "From 15 to 18, everybody is a different person. Every six months, I have a whole new outlook on life."

Mendes: "A lot of people who are 'social media' stars aren't considered to be 'real' stars, and people underestimate the amount of work it takes to edit and upload a video every single day and document your life like that."

Mendes: "I started watching YouTube videos and singing, and it became something that I was obsessed with."

Mendes: "I went to Miami and I was living with Camila and her parents and her sister, and I was in panic for the first week being like 'theres no way I'm going to make an album,' and then when I started to settle in to like how nice it is to like be in the same place every night, to like have a movie time, to like cook dinner with the family, and to do laundry... I know it all sounds really kind of silly, but when you've been touring the world since you were 15 years old, like, I don't remember the last time I smelled laundry. It's a nice smell, it's a really calming smell... It feels like growing up."

Mendes: "It was incredible being on tour with Taylor Swift: she was the epitome of a professional, and she works so hard. For someone as successful as her to work that hard every night - truly inspirational."

Mendes: "I come up with more ideas when I'm on the road, but I don't get to finish them. I don't get to fully flush them out because I'm so busy on the road. I'm very all over the place, but I'm definitely most creative when I'm out here."

Mendes: "True friends are never forgotten, they live within our hearts and souls forever and always, dancing on our stage of memories."

Mendes: "I believe vitamin C can fix everything."

Mendes: "I can see why people change. You get complimented all the time, driven around in a black SUV - your life is crazy. But that's your career, not you."

Mendes: "There's so much negativity on social media, I don't want to add to that."

Mendes: "Sometimes I get more excited for shows that I know are going to be quieter because it gets me more inspired to be more of a showman and be more of an entertainer and forces me to work harder."

Mendes: "I think when you have raw emotion in a song, it makes it great."

Mendes: "Tell me what's inside of your head. No matter what you say, I won't love you less."

Mendes: "If you're positive and really excited and enthusiastic about what you're doing, it's going to happen, and it's going to happen big time."

Mendes: "There are tons of women's perfumes that I've smelt and been like, 'I love that. I would totally wear that,' and lots of women smell a lot of men's cologne and think the same thing about that. I think there should be no reason to put gender on it."

Mendes: "I'm always wanting to spread as much positivity as possible."

Mendes: "It's extremely important just to keep things positive and happy as much as we can... I think it's important that singers, actors, or whatever use our voice to spread positive messages as much as we possibly can."

Mendes: "I'd be happy if anyone wore my fragrance. They don't have to be famous."

Mendes: "John Mayer would be my ultimate collaboration because he's just the man. He has basically captured all I believe in with music."

Mendes: "I feel like more than ever people just wanna hear real sh*t in music & in life in general. There is literally no room for made up stories or feelings. That says a lot about our generation in the best way and I feel really proud to be apart of it."

Mendes: "I don't want to get on stage and just be another act."

Mendes: "People say to me, 'What are you going to be doing in five years?' The thing is, I don't care! It's what I'm doing today that matters."

Mendes: "I love Australia; it was a really, really nice experience for me. It's such a beautiful place. The people are beautiful - like, really beautiful - and they are beautiful in terms of their personalities. It's a great place to be. It's like you are in a little bit of a dream world."

Mendes: "First of all, I'm not gay. Second of all, it shouldn't make a difference if I was or if I wasn't."

Mendes: “Love is probably the strongest emotion that you can feel. It’s very natural – and I wouldn’t want to say easy – but natural and comfortable to write about, and there’s so many different forms of it, millions of layers – you could write forever about it.”

Mendes: “I haven’t really found the right person. That sounds like an older person thing to say, but I’m too busy and – not in a bad way – don’t want to waste my time.”

Mendes: “I think it’s not about what you say; it’s about what you don’t say.”

Mendes: “No matter what, I’m trying to have fun and, depending on the mood, fun can be on a roller coaster and playing onstage, or fun can be sitting in a room with three of your best friends talking for two hours.”