He was reportedly held for "secondary questioning" by U.S. Customs and Immigration agents. It's believed that his numerous pending court cases may have something to do with it.
Bieber is scheduled for trial in Miami for drunk driving and resisting arrest.
He also has a misdemeanor assault charge pending in Toronto, and LA prosecutors are deciding whether he'll be prosecuted for vandalism. Bieber is accused of throwing eggs at his neighbor's house.
