CLASSIC HITS is a one of the most popular and best formats for delivering 35-54 Adults. This format plays feel-good music, hosted by outstanding personalities along with fun daily features and weekend themes. The classic hits format is considered the successor to the "Oldies" format. It is a radio format that generally features songs from the top 40 music charts spanning the late 60s to the early 2000s, with 80s music serving as the core of the format. The term "classic hits" is sometimes used interchangeably with the "adult hits" format, which utilizes a slightly more recent music library encompassing all decades up to the present, with a strong emphasis on 90s and 00s pop, rock, and alternative songs. Adult hits stations also tend to have larger playlists, playing a given song only a few times per week, in contrast to the tighter libraries and more frequent song rotations on classic hits stations. For instance, a prominent classic hits station in Los Angeles may play certain "power songs" up to 30 times a week, which distinguishes the format from others that share some overlapping classic hits content.The "CH" format experienced notable growth in the 2010s, with high-profile stations like WCBS-FM in New York, WLS-FM in Chicago, and WROR-FM in Boston. According to Nielsen. There are now over 1,100 Classic Hits stations across the US, the largest number in the format's history. The radio industry adopted the term "classic hits" as the official moniker. Additionally, as new artists like Adele, Pink, Bruno Mars, Maroon 5, and others became very popular, many adult contemporary (AC) stations that had featured a large library of 80s music started to phase it out, making these stations much more current oriented. Because of this, songs by well-known superstars like Madonna, Prince, George Michael, Michael Jackson... were no longer played on AC stations. The majority of these stations now play more contemporary music than artists from the 1980s, who have outlived their relevance in the AC format. Due to the format's increasing popularity, major markets have started to switch to classic hits as "The Drive" from adult contemporary on WIAD, Washington, D.C. in October 2018, from the adult contemporary format on "Fresh-FM." When radio programmer Scott Shannon moved his morning show to WCBS-FM in the 1980s, he introduced many of the 1980s-style radio formats to the station. Shannon was the mastermind behind the modern top 40 era at WHTZ (Z100) in New York city.