Mary J. Blige is celebrating her new album Growing Pains with a special pre-Christmas live performance, entitled "Mary Xmas and Mary New Year," at Sirius' Rockefeller Center studios in NYC.

Blige will spend an hour performing songs from her new album including her Grammy nominated single "Just Fine." Mary will also discuss the process of making the album with the audience.

Mary J. Blige has sold over 40 million albums and received six Grammy wins over her 15 year career. Growing Pains, set to go on sale tomorrow, features guest appearances by Ludacris and Usher.

"Mary Xmas and Mary New Year" will air live on Hot Jamz (ch 50), December 21st at 6pm ET.