Dec. 14 (UPI) -- Bruno Mars was named Billboard's top artist of the year for 2013 after remaining in the top 20 every week since the debut of "Unorthodox Jukebox" through September.
The album debuted at No. 2 last December and hit No. 1 in its 12th week, Billboard said. The album spawned three top 10 singles, including "Out of Heaven," which spent six weeks at No. 1, "When I Was Your Man," which was No. 1 for one week, and "Treasure," which hit No. 5.