Release Date

February 1, 1970

“Didn’t I (Blow Your Mind This Time)” is a song co-written by record producer Thom Bell and William Hart, lead singer of the American R&B/Soul vocal group the Delfonics. It was released by the group in 1969 on the Philly Groove record label and is regarded as a classic, winning a Grammy Award for Best R&B Vocal Performance by a Duo or Group.

It is considered one of the most notable early Philly soul singles and typical of the genre, “Didn’t I” is a slow love ballad, with layered strings, horns, and chromatic production.

Among the Delfonics’ signature songs, “Didn’t I (Blow Your Mind This Time)” was a number 3 hit on the Billboard R&B singles chart, and number 10 on the Billboard pop chart in 1970. The song peaked at number 81 in Australia.

Overseas the song peaked at number 22 on the UK Singles Chart in 1971.