Oprah Winfrey

Bobbi Kristina Brown, the only child of pop legend Whitney Houston and singer Bobby Brown, died on July 26 aged 22, six months after she was found unconscious in a bathtub.

The king of late-night American television, David Letterman, broadcasts his final show on May 20, ending a 33-year run of unpredictable, caustic comedy that set him apart.

The longest-serving nighttime talk show host on U.S. television with more than 6,000 shows to his name, 68-year-old Letterman has been honored with tributes in the U.S. media, and by a host of celebrities.

By Katerina Kapernarakou

The U.S. anti-doping chief Feb. 11 dismissed accusations of a ?witch hunt? against Lance Armstrong and said he was delighted with reforms aimed at cleaning up cycling.

Travis Tygart, chief executive of the U.S. Anti-Doping Agency (USADA), hit back at comments from former International Cycling Union (UCI) president Pat McQuaid.

Beyoncé Knowles topped Forbes’ 15-th annual Celebrity 100 ranking of the world’s most powerful celebrities for the first time since she debuted on the list in 2004.  

LeBron James, the NBA’s top player, who just opted out of his contract with the Miami Heat to explore other options, moved up to No. 2 from the 16th spot last year.