Lady Gaga Passes Oprah to Nab World's #1 Celebrity Crown

On the eve of her new album release, Lady Gaga tops Forbes' 2011 list of top entertainers — defined as the most powerful people in entertainment based on Forbes' calculation of their earnings (pretax income from May 1, 2010-May 1, 2011) and media clout (print, TV, radio, online and especially social media).

The artist formerly known as Stefani Germanotta is Forbes' new #1, notching $90 million in earnings in the past year, while the in-transition Oprah was #2 with $290 million but far less social media and digital clout. View the new top 10 below, and the complete 2011 list here. 

Below, see why Lady Gaga, Oprah Winfrey, Justin Bieber (the youngest to make Forbes' list, he debuts at #3), U2, Elton John, Tiger Woods, Taylor Swift, Bon Jovi, Simon Cowell and LeBron James made the top ten in this year's celeb rankings.