Known internationally as the "Queen of Disco" and an all-around gay icon, Donna Summer lost her battle with cancer today at the age of 63.
TMZ reports that the five-time Grammy winner was in Florida and putting the finishing touches on a new album at the time of her death. Though details are scarce, sources told the site that "the singer was trying to keep the extent of her illness under wraps."
The report adds, "We spoke to someone who was with Summer a couple of weeks ago ... who says she didn't seem too bad."
A barrage of tributes to the star quickly flooded Twitter and Facebook:
In honor of Summer -- whose signature classics include "Last Dance," "I Feel Love," "Bad Girls" and "She Works Hard for the Money" -- take a look at some of the diva's best musical moments below: