2 is the second compilation of material by American singer Frank Sinatra released on his own Reprise Records, which like its predecessor, consisted of singles and songs from movie soundtracks.

The remaining tracks represent the sound of Sinatra's music in the late 1960s, which was more laid back than his early 1960s swinging tunes, with the B-side "Star!"

2 peaked at #88 on the album charts in the summer of 1972 during Sinatra's brief retirement from show business.

UK and European versions, which were released in 1970 under the title Greatest Hits, Vol.

Confusingly the original U.S. album was released in France and Italy as Greatest Hits, Vol.