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Ariana Grande, Big Sean


Things are getting steamy between pop star Ariana Grande and rapper Big Sean!

This past Tuesday, the two lovebirds, who were first linked romantically in August, performed together at a taping for the A Very Grammy Christmas concert in Los Angeles. Grande wore a red crop top and matching high-waisted pencil skirt and platform pumps as she sang with her beau on stage.

On Saturday, Big Sean posted on his Instagram two photos of the two getting cozy backstage at the event. One of the pics shows them engaged in a sweet liplock.

"Me n my Ari," he wrote.

Big Sean, Ariana Grande, Instagram


Grande shared the same photos on her page.

"#repost me & my baby :)" she said.

She also shared a picture of manager Scooter Braun seemingly walking in on their PDA.

..... @scooterbraun ??

A photo posted by Ariana Grande (@arianagrande) on

Last month, the 21-year-old "Problem" and "Break Free" pop star confirmed she and Big Sean were dating. Flirty Instagram messages followed.

Grande told Telegraph magazine that her beau "is one of the most amazing men in the world, and that includes my grandfather and my brother."

The dating rumors just before Grande released her song "Best Mistake," which features Big Sean. The two also collaborated on her 2013 track "Right There."

She and her new rapper beau were later filmed holding hands backstage at the 2014 MTV Video Music Awards and photographed sharing a kiss on the Revenge of the Mummy ride at Universal Studios in Hollywood. Grande and Big Sean were later spotted wearing matching necklaces. A source told E! News the rapper bought her the jewelry as a gift.

At the A Very Grammy Christmas concert, Grande also wore a sliver and white fringed mini dress and white platform pumps.

Ariana Grande

Jason LaVeris/FilmMagic

The show is set to air on CBS on Dec. 5. The 2015 Grammy nominations for Album of the Year will be announced during the broadcast, while nominees in the other 82 categories will be revealed earlier that morning.

The 2015 Grammy Awards will take place on Feb. 8.

Meanwhile, Grande is set to take the stage at the 2014 American Music Awards, which take place on Sunday in Los Angeles. She, Jessie J and Nicki Minaj are set to perform their hit "Bang Bang." (Check out what Jessie J told E! News exclusively about the performance and watch her demonstrate some killer dance moves!)