St. Elsewhere is the debut album by Gnarls Barkley, a collaboration between Danger Mouse and Cee-Lo Green. The album was originally titled Who Cares? in reference to the low sales Gnarls Barkley prematurely predicted their album would experience. It was released on April 24, 2006 in the United Kingdom, where it debuted at number one on the UK Album Chart and on May 9, 2006 in the United States, although it was available for purchase one week earlier as a digital download in the U.S. iTunes Music Store. It debuted at number twenty on the U.S. Billboard 200, and as of the Billboard 200 issue date of August 5, 2006, it peaked at #4 on this chart. The album's first single, "Crazy", was the first song to become a UK number-one single based solely on downloads. As of August 22, 2006, the album has been shipped to stores in excess of 1,000,000 units, receiving a platinum certification from the RIAA. By Nielsen SoundScan sales are now at 1,260,535 copies, as of March 15, 2007. A limited edition deluxe package of St. Elsewhere was released on November 7. The CD+DVD package includes a 92 page booklet, four music videos and bonus songs from live performances. It was also released on vinyl. The album has sold over 5.8 million copies worldwide to date.