Alone is a popular musical number, first performed by Allan Jones and Kitty Carlisle in the 1935 Marx Brothers film A Night at the Opera. The lyrics were written by Arthur Freed, with music by Nacio Herb Brown. Popular versions in 1936 were by the Tommy Dorsey orchestra (vocal by Cliff Weston), Hal Kemp, and by Al Donahue (vocal by Harry McKinley).