Singer, Actress, Business woman... Jennifer Lopez tops this years Forbes Magazine's list of the 100 Most powerful celebrities. The magazine ranks the celebrities not only on money, but on fame, media visibility on television, movies, print, radio, plus social media power. Rounding out the Top 5 are Oprah Winfrey at #2, Justin Bieber at #3, Rihanna #4, and last years #1 is this years #5, Lady Gaga..!!