Pop star Lady Gaga has beaten Beyonce and Madonna to the title of World's Most Powerful Musician according to Forbes Magazine's 2013 list. The 27-year-old came first in the annual ranking, which is determined by earnings, social media influence and press mentions, largely thanks to the star's 'Born This Way' world tour grossing a massive USD 168 million, despite it being cut short due to her hip injury.

The eccentric performer, who also ranked second on Forbes' Most Powerful Celebrities list, is a prolific social media user and communicates daily with her 38.5 million Twitter fans and 57.9 million Facebook fans, who she calls her 'Little Monsters'. Beyonce ranked second on the list