Justin Timberlake and T.I. boogied in their coats filming a music video in Lancaster, CA, yesterday. It was good practice for the two men, who will be performing together at this Sunday's Grammys, where they're both up for awards. T.I. is making the most of his final days before he's off to jail for a year starting in March. It has been quite a ride for the rapper recently with his hit album and activist work, and this weekend it will be memorable to see the rapper pour his heart out alongside JT before heading off to serve his time.

To see more photos of JT and T.I. filming just