Omari Ishmael Grandberry was born on November 12, 1984 in Inglewood, California, better known as Omarion, is a Grammy-nominated R&B singer, actor, songwriter, record producer, founder of the group 2 Much, and the former lead singer of boy band B2K.

In 2001, Omarion became the leading man of the hip hop/R&B boy band, B2K. The band, including Omarion, was made up of four members, Jarell "J-Boog" Houston, DeMario "Raz-B" Thornton, and Dreux "Lil' Fizz" Frederic. The band released their debut album, B2K, to some success.

Their second album, Pandemonium, was far more successful, reaching the top ten on the Billboard 200, giving them their first #1 with "Bump, Bump, Bump". Following their third album, a soundtrack to the movie You Got Served, B2K announced they had broken up.

Almost a year after B2K's split, Omarion released his debut album, O. It debuted at #1 on the Billboard 200, eventually going platinum. The album included the relatively successful song "O". That same year, he was featured on Bow Wow's hit song "Let Me Hold You". The song reached #4 of the Billboard 100, becoming Omarion's first top-ten single as a solo artist.

In December of 2006, Omarion released his second album, 21, named for his age at the time he recorded it (though he turned 22 before the CD was released.) "Entourage", the first single, reached only #58 on the Hot 100. The video featured former B2K bandmate Lil' Fizz. Omarion and Chris Stokes founded 2Much. They are singed on O record label

Omarion has toured with Ciara, Yung Joc, Ne-Yo, Usher, Lloyd, Mario (singer), Pretty Ricky, Jibbs, and many other singers and rappers.

The second single, "Ice Box", produced by Timbaland, has gained significant radio airplay and has become his biggest single to date, peaking at #12 on the Billboard Hot 100 chart.

There is an official remix featuring Usher as well as a DJ White Owl mix featuring Usher & Fabolous. Another remix, featuring Tah'Burner, can be heard here. Omarion has confirmed that Beg For It will be his next single off his album 21.