Who is Omari Ismael Grandberry? The world knows him as Omarion, he is a American Grammy-nominated R&B singer, actor, songwriter, record producer, dancer, and former lead singer of B2K. He is currently working on his as-yet untitled third studio album.Omarion was born on November 12, 1984 in Inglewood, California. He is the older brother of singer O'ryan.
His parents names are Leslie Burrel
and Trent Grandberry. He is the oldest of 3 siblings: O'Ryan, Arielle, & Amiria. Omarion was signed to Young Money Entertainment, an imprint of Lil Wayne's Universal Records-distributed Cash Money Records however he asked for the label to release him.
Omarion was associated with Lil Wayne 
and Young Money Recods label. After a few months, Omarion asked to be removed from the label. There was no beef or problems with him or any member. He just wanted a solo career.
During the fall of 2004 Omarion and childhood friend Nicole Dellavega got married in a private ceremony in Miami, Florida. Friends and family predicted magnificent wonders for the new couple. "She's a good person very loyal and sophisticated unfortunately it didn't work out" says longtime friend Dreux Fredrick a.k.a Lil Fizz from the boy band B2K. In April 2009 current records have shown the main reason for this separation was due to infidelity on behalf of Omarion. Omarion and Nicole are still going through a divorce. Recovering from a loss of his first child, Omarion has dedicated his new album "Ollusion" to his miscarried baby Estilia. No word out on the divorce settlement yet, Omarion and Nicole have decided to kept private information.
Almost a year after the multi platinum group, B2K's split Omarion started his own solo career with his first album, O.
In December 2006, Omarion released his second album, 21,
named for his age at the time of recording. "Entourage"(produced by Eric Hudson) 
was the first single released; the video featured former B2K bandmate Lil' Fizz.
The second single from 21, "Ice Box",
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produced by Timbaland,
gained significant radio airplay and peaked at #12 on the Billboard Hot 100 chart. The video features Solange Knowles.
An official remix featured Usher and a DJ White Owl mix featuring Usher,
Fabolous
& Michael Doughty.
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In December 2007, Omarion released his third project, a collaborative effort alongside rapper Bow Wow, entitled Face Off. Producer Jermaine Dupri
initially suggested the collaboration, which offered an album and a two-part documentary entitled "The Road To Platinum". This was a BET special following the recording and promotion of the project. The first single released was written by The-Dream,
called "Girlfriend". The second single sampled LL Cool J's 
"Going Back To Cali"
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and was entitled "Hey Baby". Face Off entered the official Billboard 200 album chart at number twelve, was the number one rap album in the U.S. and number two R&B album. It is now reported that as of July 20th, Omarion has signed with Lil Wayne's Young Money
Label. On August 21, 2009 Omarion Posted on "Twitter" that he wasn't dropped from Young Money Records for leaking the song "I Get It In", which featured Lil Wayne, and that Omarion asked to be released from Young Money Records to pursue other arrangements with no beef with the company or its roster. Since parting ways with Young Money, Omarion has redone "I Get It In", now featuring So Icey/Atlantic artist Gucci Mane.
He also released a solo autobiography book titled "O" in 2004. It was released on behalf of MTV. 
He has since then departed ways with SonyBMG and has signed with EMI. He is currently recording his third studio album "Ollusion" set for release on November 24, 2009.
In early 2004, Omarion appeared in several films, most notably.You Got Served, in which he starred alongside his label mate Marques Houston, 
as well as his former B2K band mates. The movie centered around a group of friends in a hip hop dance crew who take part in underground dance competitions. It earned $40 million worldwide. Later that year he had the role of the school bully "Reggie" in the comedy Fat Albert, based on the animated series Fat Albert and the Cosby Kids. Omarion also played the voice of Fifteen Cent in The Proud Family Movie.
In late 2007, Omarion, starred in the urban thriller/horror film Somebody Help Me,which was released only on DVD and aired on BET in celebration of Halloween.
Omarion also starred in and co-produced Feel the Noise. Omarion has also guest starred on several TV shows. He appeared on One on One as Nytemare and The Bernie Mac Show as Shonte.
He did make an appearance as himself with Khloe and Kourtney Kardashian on "Khloe and Kourtney takes Miami" show where Khloe and Omarion explore if a relationship between the two would be feasible.