WATCH: Selena Gomez challenges Chrissy Teigen to a dance-off... in her bra

Looks like Selena Gomez likes to flash her flesh for Insta-followers.

Showing off her taut tum on Instagram, the 22-year-old star challenged sexy Sports Illustrated model Chrissy Teigen to a dance off… dressed in a teeny-tiny sports bra.

But will Chrissy take the challenge? Check out Selena's bizarre 'Chandelier' rendition above…

This comes just hours after Selena and beau Justin Bieber were caught up in an alleged phone stealing incident… with LA police called out to Hollywood eatery Dave & Buster's after accusations were made against Justin's posse.

After confirming 20-year-old Justin was present, an LAPD spokesperson added that no one was charged over the alleged theft and that there was "no fight, no scuffle and no crime occurred."

Sounds like the only crime here is Selena's awkward Insta-vid up top.

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