2013 The Most Powerful Couples of 2013 How to get from Pope Francis to Lady Gaga in 11 easy steps By Andrew Katz Dec. 09, 2013 prev12 of 13next Christopher Polk / AMA2013 / Getty Images for DCPTAYLOR SWIFT met LADY GAGA, American pop artist, at the American Music Awards in Los Angeles. Gaga joined R. Kelly for a JFK-themed performance; Swift won Artist of the Year. Share Read Later