We begin this list with a tie for the number fifth spot. This spot is shared by Flo Rida and PSY, who have made themselves famous due to the mixture of rap and pop in their songs. Both of these superstars have excellent voices, and they usually appeal to teenagers. Both of these have had catchy songs, and their music always becomes famous the moment it hits stores, simply because the public knows that these two have talent. Flo Rida is a wonderful human being, and a great singer as well. His songs have been used worldwide (with 'Wild Ones' being used at WWE WrestleMania 28, a wrestling event) and his songs are catchy and melodious, which makes for a great listen. Flo has always been at the top of his game, and has won multiple accolades due to his songs, which have always been platinum hits. His songs have topped the charts, and are one of the most popular songs yet. http://www.youtube.com/watch?v=mIQToVqDMb8 PSY is a different case altogether. With two hits, 'Gentlemen' and 'Gangnam Style', PSY has propelled himself to the top with his catchy Korean songs, which, while not understandable, are fun to listen to, and are a good way of relaxing. His catchy songs have been playing all around the world, whether it be on TV Shows, in sports or everywhere! These two singers have worked hard and their caliber and their talent has brought them to the fifth position, and they truly deserve it.