Hollywood's alta cockers rolled out of bed, took off their slippers, and put on their dancing shoes to celebrate the 90th birthday of a true Hollywood legend -- Ernest Borgnine (1955's Best Actor Oscar-winner for "Marty").

TMZ's cameras caught all the "excitement" in front of trendy Madeo restaurant, where we spotted "Singin' in the Rain" legend Debbie Reynolds (74), "Law & Order" senior Dennis Farina, "Beach Blanket Bingo" star Don Rickles (80), "Mannix" Mike Connors (81), "Scarface" bad boy Robert Loggia (77), "Palm Springs Weekend" star Connie Stevens (68), and in the most random appearance of the night, "La Bamba" star Lou Diamond Phillips.