The Las Vegas Grand Prix race took place on Saturday and was won by Dutch driver Max Verstappen
The stars were out in full force at the Formula One Las Vegas Grand Prix!
Rihanna, 35, oozed rockstar glamour at the event in a black leather jacket with a black hoodie, half-unzipped to reveal a black bra, and a pair of shiny gray Balenciaga pantaleggings.
The newly-blonde singer wore her hair in loose waves and accessorized her look with a pair of black visor shades and an embellished choker.
She was joined at the Grand Prix by boyfriend A$AP Rocky, who opted for a blue and white pinstripe shirt over a white t-shirt, teamed with blue jeans and a pair of gloves from his PUMA x F1 collection.
Bieber, meanwhile, was photographed receiving the honor of waving the chequered flag, which signals the end of the race, as he stood on a raised podium.
Like Rihanna, Hilton, 42, arrived at the event in elegant black. Her race-appropriate attire included a chic all-black leather outfit with matching leather gloves.
Other celebrities in attendance at the Las Vegas Grand Prix on Saturday included David Beckham and son Brooklyn Beckham, Lindsey Vonn, Cara Delevingne, Gordon Ramsay and daughter Holly Ramsay and Casey Affleck.
The 59-year-old actor was seen in a TikTok video shared by ESPN walking around the practice session and in another clip in the pit lane. Pitt’s attendance comes amid his production on an upcoming Apple Original film where he plays veteran Formula 1 driver Sonny Hayes.
Rihanna was also seen in Las Vegas on Friday as she made an appearance alongside boyfriend A$AP Rocky at the pop-up launch event of the new Puma x F1 collection amid the rapper's new partnership with PUMA.
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The Bajan singer, who shares two sons with the Rocky, 35, wore a long brown leather Prada coat with several pockets and black pointed pumps.
Rocky, meanwhile, modeled designs from the new Puma collection. As creative director for PUMA’s new partnership with F1, he wore a gray jacket from the collaboration, along with a pair of neon Puma gloves, pants featuring the brand's logo and an "ALLAH” baseball cap.
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