here is a cut from a compilation, Philly Soul.
http://www.youtube.com/watch?v=iBb3h4b8LIY&feature=fvwrel (with record scratches)
youtube delphonics HERE
about the song/writers: http://en.wikipedia.org/wiki/Didn't_I_(Blow_Your_Mind_This_Time)
I listened to this song when i was Young(er) and it hit all the right chords to make me feel good and bad at the same time.