Jennifer Lopez Tops Forbes' 100 Powerful Celebrity List

American pop star Jennifer Lopez has topped the annual Forbes list of the 100 most powerful celebrities in the world, taking over from fellow pop singer Lady Gaga and beating out media mogul Oprah Winfrey. 

The 42-year-old singer and actress jumped a surprising 50 places from last year's list that measures power by entertainment related earnings, media visibility and social media popularity.

Forbes estimated Lopez' earnings in the past 12 months at $52 million, through her gig as a judge on the popular "American Idol" television talent show, a new clothing line and an upcoming tour. 

Winfrey, who has admitted struggling with her OWN TV network after ending "The Oprah Winfrey Show" syndicated TV chat show last year after 25 years, kept her No. 2 slot from last year, earning an estimated $165 million. 

Jennifer Lopez battles first husband over alleged sex tape

Lopez (r) with Noa

Pop-star Jennifer Lopez is battling her first husband Ojani Noa over an alleged sex tape. In a document obtained by Radaronline , Noa claims to possess the tape involving him and the  pop star  from their honeymoon.

Lopez had previously unleashed her legal team on Noa to try to prevent the release of the tape.In the latest round of correspondence, Noa's business associate Ed Meyer tells J.Lo's attorney Jay Lavely that the singer "has made numerous claims and allegations that she has never consented to Ojani Noa's Home Videos.