Beetle or Beatle?

Do not confuse the two homophones Beatle and beetle:

A beetle is an insect, one of an enormous number of species in the order coleoptera. While there are many species of beetle, and millions of individuals, there were only four Beatles. They formed a musical group. The name was chosen because they played music with an insistent beat, as well as being a reference to Buddy Holly's band, also called after insects: the Crickets. The four Beatles were John Lennon, Paul McCartney, George Harrison and Ringo Starr