"Livin' It Up" is a song by American rapper Ja Rule featuring singer Case. It was officially serviced to US urban radio on September 10, 2001, as the lead single from Ja Rule's third studio album, Pain Is Love (2001), following several weeks of early airplay. The song, produced by Lil' Rob and Irv Gotti, samples Stevie Wonder's 1982 song "Do I Do".