need to find this song, please help
 

i heard a song several years ago. i dont remember who it was or what it was called. it was a live acoustic duet w/ some guy and girl singing. it had like a semi funky indie soul coffee shop sound too it, bongo drum and upright bass maybe. the only lyric i remember is halfway through the song he says something like "i know he was with you last night because i heard you call his name" and the girl sings "Oh my god". i was thinking maybe ben harper but i couldnt find it on any of his songs i looked up. and i think the title might have some variation of "body and soul" in it. i know its not much to work with but if anyone could help me i would appreciate it. thanks.