Ariana Grande looked like an ice princess on Wednesday night, as she hyped up the crowd during Jingle Ball in Philadelphia, PA. with a high-energy performance. The 21-year-old showed off her slim figure in a sparkly white ensemble, complete with cute cat ears! Ariana and Jessie J kept things 𝑠e𝑥y onstage, performing their hit song “Bang Bang.”Ariana has been quite a busy woman lately! Earlier this month, she performed at the Victoria’s Secret Fashion show in London (and nearly got knocked over by one of the statuesque beauties!)And several days ago, she and Big Sean packed on the PDA while performing their song “Best Mistake” during their Jingle Ball performance at Staples Center in Los Angeles. They even wore matching outfits, as Ariana wore a red skirt and crop top, while Big Sean wore a red plaid shirt. At the end, he even planted a kiss on her cheek. Aw!Ariana opened up about Big Sean during an interview with The Telegraph last month. “He is one of the most amazing men in the whole world, and that includes my grandfather and my brother.”I think the world of him, and he’s an amazing person. That’s kind of all there is to it,” Ariana said. Aw, young love!