*T.I. has tweeted his first comments since being arrested for drug possession, alerting fans that he’s “back in the lab” working on his upcoming album, “King Uncaged.”

A week after the rapper and his wife were booked for suspicion of possession of a controlled substance – reportedly the drug Ecstasy – T.I. says he’s close to completing the album, which he put on hold to film his role in “Takers.”

Born Clifford Harris Jr., the artist also made time on Friday to visit his niece, who is receiving treatment for cancer.

“Went to see my niece in the hospital & she made my day!!! She’s fighting cancer & worried about how I’m doing,” T.I. captioned in a twitpic of the visit [see below]. “Uncle Tip rides 4u…Thru It All, No Matter What!!!”

 

T.I. is facing possible probation-violation charges over his arrest.