3121 (pronounced "thirty-one twenty-one") is the thirty-first studio album by American musician Prince. Released on March 21, 2006 (3/21) by NPG Records and distributed, under a "one-album deal", by Universal Music, the album reinforced Prince's big comeback after the critical success of Musicology (2004). The only Prince album ever to debut atop the Billboard 200 during his lifetime, with over 180,000 copies sold in its first week, it knocked the soundtrack for High School Musical off the top spot and became Prince's first number one album since Batman in 1989, eventually being certified Gold by the Recording Industry Association of America (RIAA).