It was a very happy birthday indeed for legendary Motown singerDiana Ross, who rung in 75 on Tuesday with an unplanned performance fromBeyoncé.
The Supremes icon celebrated her milestone at a star-studded gathering at the famed Hollywood club Warwick, before later moving over to the Hollywood Palladium.
In attendance were members of Diana’s large family (daughterTracee Ellis Ross, sonEvan Ross, and daughter-in-lawAshlee Simpson, among others), as well as longtime friends like Motown founder Berry Gordy and a multitude of stars — includingSean “Diddy” Combs, DJ Khalid, French Montana,Kris Jenner,Kourtney KardashianandKhloé Kardashian.
All gathered around what Tracee dubbed “the biggest cake ever” to sing Diana “Happy Birthday” in social media video from the party. But theBlackishactress, 46, saw Beyoncé in the crowd and quickly called the “Single Ladies” songstress over to lead things off instead.
Beyoncé, of course, delivered a “***flawless” version of the tune. Her hair pulled back in a long braided ponytail and wearing a black gown, she commanded the room — everyone staying silent as she sang the beloved melody to a beaming Diana.
This isn’t the first time Beyoncé has serenaded the singer.
In 2000, the 37-year-old songstress covered Diana’s 1980 disco hit “Upside Down” alongside her Destiny’s Child bandmates for VH1’sDivas Livetribute concert to Diana’s illustrious career.
Beyoncé has also cited Diana as an influence on her musical style, even playing a fictional girl group singer turned solo star based on Diana in the film adaptation of the hit musicalDreamgirls.
John Lamparski/WireImage; Jason LaVeris/FilmMagic

Diana Ross and Beyoncé.Chris Polk/FilmMagic

Diana has been celebrating her 75th birthday for weeks now, hosting a “birthday celebration” in Las Vegaswith a series of showsat the Wynn Las Vegas throughout February.
“Thank you for being here to celebrate my 75th birthday,” she said to large applause, before walking through the crowd singing “Reach Out and Touch (Somebody’s Hand).”
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With all these performances, it shouldn’t be a surprise to hear that Diana actually took the stage at her own birthday party on Tuesday, too.
Stevie Wonder made a special appearance at one point, singing his own “Happy Birthday” to Diana.
source: people.com