Debbie Reynolds -- who rose to stardom in "Singin' in the Rain" and quickly became a staple among Hollywood royalty -- died Wednesday as a result of a stroke, TMZ has learned ... just one day after her daughter Carrie Fisher passed away ... this according to her son Todd.
Debbie was rushed to a hospital shortly after 1 PM when someone at the Beverly Hills home of her son, Todd, called 911 to report a possible stroke. We're told Debbie and Todd were making funeral plans for Carrie, who died Tuesday of cardiac arrest.
Debbie's survived by her son Todd, who tells us, "She's with Carrie."