Bruno Mars is Billboard's man for 2013 He is their man ... This image provided by Billboard shows Artist of the Year Bruno Mars on the cover of Billboard magazine. MILEY Cyrus twerked her way to the top and Justin Timberlake made a return to music but Bruno Mars has been named Billboard's top artist for 2013. It's flattering. It's just an honour," Mars said in an interview this week. I'm proud to be a part of this whole team that I have. The singer's year included a No. 1 hit with When I Was Your Man and a top 5 hit with Treasure. His sophomore album, Unorthdox Juxebox, was released late last year and has sold more than 1.8 million units. It's the second best-selling album of the year behind Timberlake's The 20/20 Experience. Mars added that listeners have resonated with his music because it's "relatable." "You know when you eat that food and it's filling that void you were missing," he said, describing his music. Taylor Swift is the year's top female artist for Billboard, while Mars is the leading male. Macklemore & Ryan Lewis is the top group and new act. Timberlake ruled the R&B charts, while groups Flordia George Line and Imagine Dragons topped the country and rock charts, respectively. He's Billboard's Treasure ... With hits songs When I Was Your Man and Treasure, Billboard has named Bruno Mars their top artist for 2013. Mars' impressive year also includes four Grammy Awards. His No. 1 hit, Locked Out of Heaven, is up for two of the top awards, song and record of the year. He'll launch the second North American leg of his Moonshine Jungle World Tour this summer.