Lil Scrappy once again finds himself behind bars after refusing to undergo a drug test.

TMZ reports that the "Headbussa" rapper has turned himself in to police custody after refusing a court ordered urine test back in March. Scrappy was accused of tampering with the results of a previous urine test and refused court orders to give another sample.

Scrappy turned himself into police this morning after a warrant was issued last week for his arrest.

The "Love & Hip-Hop Atlanta" star's court mandated drug tests stem from his 2008 arrest, in which he was arrested for possession of marijuana. This past October, the former G-Unit South rapper was arrested and imprisoned after he violated the terms of probation.

[via TMZ]