LOS ANGELES Singer Patrick Stump of Fall Out Boy has been arrested on a 2-year-old warrant for driving without a valid license.

Sheriffs spokesman Steve Whitmore says the 25-year-old was arrested late Tuesday during a traffic stop by Los Angeles police. He was booked on an outstanding warrant for driving without a license and released early Wednesday after posting $15,000 bail.

Court records show Stump failed to appear on a misdemeanor driving without a valid drivers license case in Beverly Hills in June 2007. A judge issued a warrant for his arrest at the time.