O'Ryan Omari Grandberry was born in 1987 in Los Angeles, California. The second of seven children in his family, O'Ryan is the younger brother to former B2K member and R&B singer Omarion.

Despite his family's strong involvement in music, O'Ryan seemed apt to stay out of the business. While he loved music, he would often let Omarion take the attention when they were kids. However, he was cast as Michael Jackson in a play in Los Angeles, and quickly became embellished in music. He began to hang out with his brother and the members of B2K and was signed to T.U.G. Entertainment alongside them.

This resulted in his self-titled debut album in 2004. The album had one single, "Take It Slow" which failed to take off, despite being co-written by Andre Deyo, writer of "Jenny From the Block," and featuring Jessica Benson of 3LW.