To have PSY, a Korean superstar and MC Hammer, an iconic black star from 1992, performing "Gangnam Style" and "2 Legit 2 Quit" on stage together to close out the American Music Awards, seems an appropriate -- even touching -- bookend for the year.
In a dance collaboration for the history books, MC Hammer and K-pop sensation PSY joined forces at the American Music Awards to perform the pony dance...