What's the 411? is the debut studio album by American singer Mary J. Blige, released on July 28, 1992, through Uptown Records and MCA Records. After signing a record contract with Uptown, Blige began working on the album with producer Sean "Puff Daddy" Combs. Other producers and songwriters included DeVante Swing, Tony Dofat, Dave Hall, Mark Morales and Mark "Cory" Rooney. The resulting music covered hip hop soul, contemporary R&B and new jack swing styles. What's the 411? was also met with positive reviews from critics, who applauded Blige's singing and the combination of hip hop and soul music, which Read more on Last.fm.