Chris Brown is being held without bail in Los Angeles.
Sheriff's officials say the singer was arrested Friday afternoon in Malibu for allegedly violating the terms of his probation.
TMZ.com says the arrest came after Brown was kicked out of a Malibu rehab facility for violating the facility's rules.
Brown has been getting treatment for anger management issues over the past several months.
He's still on probation for assaulting then-girlfriend Rihanna in 2009 and also faces trial in Washington, DC next month for an altercation with a man outside of a W Hotel there.