"Yummy" is a song written and performed by American singer Gwen Stefani featuring fellow American musician Pharrell Williams from the former's second solo studio album, The Sweet Escape (2006). The track was released on November 11, 2006, as a promotional single for the parent album's release through Interscope Records. It was developed during several sessions in Miami, Florida, and Hollywood, California, in July 2005, for an intended EP or as extra tracks on Stefani's video album Harajuku Lovers Live (2005). The song was produced by the Neptunes. Musically, the collaboration is a dance-pop recording with a "day-glo" rap. Its lyrics deal with food, sexual intercourse, and the roles that an individual may have within a household.

Pharrell Lanscilo Williams, often known mononymously as Pharrell, is an American record producer, singer, songwriter, rapper, and fashion designer. He first became known as one half of the hip hop and R&B production duo the Neptunes, which he formed in 1992 with Chad Hugo. They produced 15 singles which peaked within the top ten of the Billboard Hot 100, including four songs that peaked atop the chart. He also formed the alternative band N.E.R.D. with Hugo and drummer Shay Haley in 1999, for which Williams serves as lead vocalist. He has been considered one of the most influential music producers of the 21st century for his impact on popular music.