"I Decided" is a song by American recording artist Solange Knowles. It was written and composed by Knowles and producer Pharrell Williams for her second studio album Sol-Angel and the Hadley St. Dreams (2008). The song samples hand-claps of the 1964 recording "Where Did Our Love Go", as performed by The Supremes, and is also based on the melody of "(Love Is Like a) Heat Wave" (1963) by Martha and the Vandellas. It was released as the album's lead single as a digital download to both iTunes and Amazon on April 22, 2008, and was impacted to rhythmic/crossover radio stations on June 24, 2008.

Solange Piaget Knowles is an American singer, songwriter and actress. Knowles expressed an interest in music from an early age and had temporary stints as a backup dancer for Destiny's Child, which featured her older sister Beyoncé Knowles among its members, before signing with her father Mathew Knowles' Music World Entertainment label. At 16, Knowles released her first studio album Solo Star (2002). She also appeared in the films Johnson Family Vacation (2004), and Bring It On: All or Nothing (2006).