Hitting the Billboard Music Awards red carpet, the 37-year-old actress turned heads in her black strapless leather bustier Zuhair Murad dress featuring fringe detail. She also debuted a chic new hair change: a chin-length bob.
The newly single star topped off her sexy look with smoky makeup and strappy studded heels.
“This is so much fun. This is a blast to be here. I have real fomo … especially because Janet [Jackson]’s performing tonight. I’m like, ‘Can I go up there? Can I dance?’ It’s fun to be presenting!” she told E! News on the red carpet, adding that her 5-year-old daughter Everly also has some “serious” dance moves.
Check out PEOPLE’s full Billboard Music Awards coverage to get the latest news on music’s big night.
Hours before stepping onto the carpet, Dewan — who announced her split from ex Channing Tatum in April — teased fans about her new hair on Instagram.
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“Byeeeeee hair,” she captioned a snap of her hair on the floor.
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It’s been a Sin City-packed weekend for Dewan, who celebrated her cover of VEGAS magazine on Friday at the Red Rock Casino.
“This year has just been a really incredible year in a lot of ways. A lot of change, but you go with it and you make the best with what you can,” she told PEOPLE at the bash. “I’m really great and doing wonderful and I thank everyone for their love always.”
The 2018 Billboard Music Awards are broadcast live on NBC from the MGM Grand Garden Arena in Las Vegas on Sunday, May 20 at 8 p.m. ET/PT.