 The boy band NSYNC formed in 1995, and began their career in 1996 in Europe; Timberlake and Chasez served as its two lead singers.In 1998, the group rose to prominence in the United States with the release of their self-titled debut studio album, which sold 11 million copies and included the single "Tearin' Up My Heart".Their second album "No Strings Attached" (2000) sold 2.4 million copies in the first week, and included a number one single, "It's Gonna Be Me".