WGCI announced the line up for its annual Big Jam concert. which will be at the United Center on December 30th. The headliners include Chris Brown, Young Thug and Trey Songz. Lil Yachty, G Herbo and Lil Bibby are also featured, with Desiigner coming back again after being apart of the Summer Jam in June.

Click this link for more information about tickets, and check out pictures from Summer Jam here.