Oprah tops Forbes most powerful celebrity list

After two years as a runner-up, Oprah Winfrey has been named the most powerful celebrity by Forbes, heading the six women and four men who make up the top 10.

It was the fifth time the former talk show host who runs her own TV network has headed the annual ranking of 100 celebrities.

Singer Lady Gaga came in second, followed by director/producer Steven Spielberg and singers Beyoncé and Madonna.