"You Tell Me Why" is a song by American rock group The Beau Brummels, from the band's second album, The Beau Brummels, Volume 2. The song was written by guitarist Ron Elliott and produced by Sylvester Stewart, later known as Sly Stone. "You Tell Me Why" was released as the album's lead single, and peaked at number 38 on the Billboard Hot 100 in August 1965. The band revisited the song and included it on their 1975 eponymous album.