NEW YORK - An official says Lil Wayne's efforts to keep up the beat behind bars have gotten him in trouble in a New York City jail.

A city Correction Department spokesman says the rap star faces potential discipline after jail officers found a charger and headphones for a digital music player in his cell on Monday. The rapper is serving a yearlong sentence after pleading guilty to a 2007 gun charge.

Lil Wayne's lawyer had no immediate comment Thursday.

Officers said the music player itself turned up in another inmate's nearby cell. Both men were charged with infractions that are not crimes. They'll be subject to a jail disciplinary process, not a court.

Inmates can listen to music, but only on radios and headphones sold at the jail commissary.