The Formula is a collaborative album by Buckshot (of the Boot Camp Clik) and 9th Wonder (formerly of Little Brother), released on April 29, 2008 through Duck Down Records. The album is the second full-length collaboration between the two, the first being 2005's Chemistry. The album's first single was "Go All Out". The tracks' music video features an appearance from comedian Charlie Murphy. Videos were also shot for the tracks "Hold It Down" and "The Formula".
The Formula debuted at #137 on the Billboard 200 album chart, opening with 5,874 units sold.