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.

Clifford Joseph Harris Jr., better known by the stage names T.I. and Tip, is an American rapper. Born and raised in Atlanta, Georgia, Harris is known as one of the pioneers of the hip hop subgenre trap music, along with fellow Atlanta-based rappers Jeezy and Gucci Mane. Harris first became aquainted with local music executive Kawan "KP" Prather, and joined his company Ghet-O-Vision Entertainment by the late 1990s. He was led to sign his first major-label record deal in 1999 with its parent company LaFace Records, an imprint of Arista Records. His debut studio album, I'm Serious (2001) was met with lukewarm commercial reception and became his only release with the label. He then signed with Atlantic Records, where he soon reached his mainstream breakthrough and co-founded his own label imprint, Grand Hustle Records by 2003.