Charli XCX has already been having a great year, and last night's Jingle Ball was no different for the punk rock pop star. As she preps for the release of her sophomore album Sucker, Charli has performed at basically every awards show ever, including the EMAs, the VMAs and the AMAs, but that hasn't stopped the "Boom Clap" singer from feeling a little bit nervous about her upcoming "Saturday Night Live" performance.

In fact, she's so nervous that she's worried she might be sick about it.

"It's been hyped up so much... I think I'm going to like, vomit on the stage," she laughed to MTV News reporter Christina Garibaldi while discussing the show on the red carpet at last night's NYC Jingle Ball. "Of course I'm nervous, it's 'SNL'!"

Another fear? According to Charli, she's not the greatest actress. Really? Because based on the rebellious way she performs in things like her "Break The Rules" music video well, it kind of seems like she is a good actress. Guess we'll just have to wait for her to go on the show tonight to see how it all plays out. Watch her discuss her nerve-inducing guest spot below: