Yung Joc -- Arrested in Atlanta After Feeling the Need for Speed

"Love & Hip Hop: Atlanta" star Yung Joc just learned a hard lesson ... speeding can open Pandora's Box and land you in jail.

Law enforcement sources tell us the rapper was pulled over by Atlanta PD Thursday for speeding. Cops ran his license and discovered it was suspended. But that wasn't all.

YJ has a warrant out for his arrest. We don't know the nature of the warrant, but it doesn't matter much. The rapper was cuffed and taken to the cop shop for a not-so-pretty mug. He's still in custody.

You may recall... Joc recently battled his baby mama to prevent her from airing his dirty laundry on an upcoming project called "Baby Mamas Atlanta, Virginia, Denver & Los Angeles."

More laundry in the hamper.