The Grammy-winning songstress was spotted on her way out in a black ensemble.
Diana Ross' famous daughter made a sartorial splash in colorful feathers.
The famous mother of three opted for a sparkling suit with flared bottom while her sister donned a golden gown.
The CBS This Morning co-anchor sparkled in a red ombre, sequin gown.
The Oscar winner kept a low profile while leaving the event.
The comedian made his arrival in a blue suit.
Diana Ross' son and his famous wife were among the most fashionable attendees.
The reality star mother and daughter dazzled in glamorous sequin gowns.
The rapper was chicly dressed in a double-breasted suit jacket.
The music icon, who performed his "Happy Birthday" hit for Ross, was spotted leaving the Hollywood Palladium.
The supermodel stunned in a standout gown alongside her fiancé.
The rapper was dressed to impress in a stylish suit.
The rapper was spotted on his way out in a sweatshirt and track pants.
The designer looked dapper in a classic black suit.
The Grammy-nominated songstress shimmered in purple sequins.
The famed rapper escorted his glamorous mother into the party.
The married couple coordinated in black ensembles as they stepped out in honor of Ross.
The iconic performer donned feathers for the special event.
The actress made a sartorial splash as she stepped out for the big birthday party.
The famous pair dazzled in their chic party looks. Thick later performed "Endless Love" with the famous birthday girl.
The songstress was dressed for a party in a floor-length backless gown.