«I Wanna Sex You Up» is a hit single for R&B group Color Me Badd in 1991, released as the first single from their debut album C.M.B.. It achieved a huge success in the U.S., UK and New Zealand, where it reached #1 on the charts. It spent four weeks at No. 2 on the Billboard Hot 100, but topped both the Billboard R&B and Dance charts.

The song spent three weeks at number-one on the UK Singles Chart and reached number two on the Billboard Hot 100. It was the 10th best-selling single of 1991 in the UK. The alternate hit-version also appeared on the New Jack City soundtrack, and in 1992 the song won the group a Soul Train Music Award for Best R&B/Soul Single, Group, Band or Duo and Soul Train Music Award for Best R&B/Soul Song of the Year.