10 WORLD'S MOST POWERFUL CELEBRITIES- FORBES

This list is topped by Lady Gaga whose Monster's $90 million in earnings and mastery of social media pushed her past perennial winner Oprah Winfrey off the top spot. in numerical order below

Lady Gaga

Opra Winfrey

 Justin Bieber

U2

Elton John

Tiger Woods

 Taylor Swift

Bon Jovi

Simon Cowell

Lebron James

Sources http://www.forbes.com/wealth/celebrities/gallery