"What's the Matter with You Baby" is a 1964 single written by William "Mickey" Stevenson, Clarence Paul, and Barney Ales and produced by Stevenson.
It was recorded and released by Marvin Gaye and Mary Wells on the Motown label.
[1][2] Released as a double A-side single alongside "Once Upon a Time", the song gave Gaye and Wells another charted smash.
"What's the Matter with You Baby" peaked at number seventeen on the U.S.
[3][2] On Cash Box "Top 50 in R&B Locations", the song went to number two.