21 is the second album from R&B singer and former B2K frontman Omarion. The first single off the album was "Entourage" written by Andre Merritt and produced by Eric Hudson. The second single "Ice Box", produced by Timbaland and King Logan and Sir John of The Royal Court. It was made available on iTunes October 31 and has become his most successful single as a solo artist .
Other collaborators on the album include Pharrell Williams, songwriter Bryan Michael Cox and Andre Merritt (writer of Entourage) and Eric Hudson (producer of "Entourage", respectively).
The album landed at number one in the Billboard 200, selling 119,000 copies in its first week. Making it his second album to hit #1, although selling 60,000 less than his debut solo album O.
