Song written by Marty Wilde.
Released as a single in 1959, this was Marty's first officially released self-penned song. Marty confessed later that he wrote the song out of frustration, because there weren't any suitable songs for him to record - his previous hits had all been cover versions of original American hit singles.
A mere 61 years after its original release, Kim performed the song together with Marty and her sister Roxanne on the show 'That Was Then This Is Now'.
'Bad Boy' has been covered by Jef Barbara, Fabienne Delsol, Robert Gordon, Françoise Hardy, The Jaguars, Robin Luke, Tex Rubinowitz, The Staccatos and Freddie Starr.