Born Leonard Grant and widely known as Uncle Murda or U.M., this New York rapper released a 2006 album titled Say Uncle. His numerous hip-hop singles include "Run the City," "Murdera," and "Bullet Bullet."
Early in his career, he released a mixtape titled Respect the Shooter and was signed to the Roc-A-Fella Records label.
In early 2008, he suffered a non-fatal gunshot to the head, but did not file charges against his shooter.
He was born and raised in Brooklyn, New York.
He collaborated with the multi-Grammy-winning rapper Jay Z on the 2007 single "Brooklyn."