LOS ANGELES (CBSLA.com) — Singer Chris Brown was released from the Los Angeles County Jail early Monday morning.

Brown was freed at 12:02 a.m. and quickly took to Twitter to express his gratitude.

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The 25-year-old has been on probation for a 2009 attack on then-girlfriend Rihanna.

In May, a judge ordered Brown to remain in jail for 131 days for violating his probation after he was arrested for assault in Washington, D.C. in October 2013.

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He only served 24 days in relation to that sentence.

It was unclear if his release was related to good behavior or overcrowding.

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Brown is awaiting trial in the Washington, D.C. case.