Ab-solutely fabulous!

Rita Ora celebrated the holidays in Dubai this week, and from the looks of the pictures she posted on Instagram, she and her family had a white-hot Christmas.

The 22-year-old British pop star took to the site on Dec. 26 to share some super sexy snaps from her vacation, including a close-up photo of her ab-tastic bikini body. Taking advantage of the warm, sunny weather, the "How We Do" singer showed off her toned, tanned stomach and major cleavage in a skimpy black two-piece.

One day earlier, on Christmas, the star frolicked in the surf at Nasimi Beach in a different black bikini. "Xmas by the beach," she tweeted to her 2.1 million followers on Twitter, along with a link to the photo.

Ora's picturesque getaway couldn't have come at a better time. Earlier this month, the Brit found herself the subject of cheating rumors when her ex-boyfriend Rob Kardashian** went on a Twitter rant about an unidentified woman -- widely assumed to be Ora -- who cheated on him with "nearly 20 dudes."

In fact, a source told Us Weekly that Kardashian, 25, dumped Ora because he learned that she had betrayed him with newly single Moneyball actor Jonah Hill**. "Rita spent the night with Jonah during a trip to New York," an insider said of the hookup.

The "Hot Right Now" singer, for her part, said in an interview with Glamour UK that the reason for their split was distance. "I was like a ghost," she told the mag. "I used to get so frustrated with myself and then wonder why I was angry, so I decided it was best to keep it friendly -- especially at the moment, when there's so much going on."

This article originally appeared on Usmagazine.com: Rita Ora Shows Off Toned Abs, Hot Bikini Body in Pictures From Christmas Holiday in Dubai