The Grammy-winning rapper Lil Wayne has pleaded guilty to attempted weapon possession, and expects to receive a one-year jail sentence.

He previously had pleaded not guilty to illegal gun possession charges that carried at least 3 1/2 years in prison upon conviction.

Police said a gun was found on his tour bus in Manhattan in 2007.

The rapper, born Dwayne Carter, won last year's best rap solo performance Grammy for "A Milli." His albums include "Tha Carter," "Tha Carter II" and "Tha Carter III."

His trial had been due to start Jan. 20.