Donna Summer dead at 63

TMZ is reporting that music legend Donna Summer is dead at 63:

Donna Summer -- the Queen of Disco -- died this morning after a battle with cancer.

We're told Summer was in Florida at the time of her death. She had reportedly been trying to keep the severity of her illness quiet, and was hoping to finish her new album.

Summer was a 5-time Grammy winner who shot to superstardom in the '70s with iconic hits like "Last Dance," "Hot Stuff" and "Bad Girls."

"The disco songs were the singles, which they promoted," she told The New York Times in an interview. "That's how we got people to buy the albums."

She continued her dominance in the '80s with "She Works Hard for the Money" and "This Time I Know It's for Real."

Summer and her producer Giorgio Moroder defined the dance music era of the '70s and influenced acts like Duran Duran and David Bowie to enter the genre.