It is obviously a huge thing for Charli XCX and her career that she is on double SNL duty this weekend – hosting AND the musical guest. Not many people have the charisma or star power for both, but she does. And as a lifelong massive fan of Charli since True Romance days, nobody is happier for her getting this exposure than me.

It's "Brat!” British songwriter Charli XCX helped to popularize the word that once described a badly behaved child, but this summer it took on a whole new meaning. NBC's Dana Griffin reports for TODAY.

The latest promo clips also see Charli XCX promising Marcello Hernández "the nation" will decide if his outfit is "brat" or "brong".

In her second promo video for her stint as his weekend’s Saturday Night Live host, Charli xcx banters with cast member Marcello Hernández about a variety of topics, including what the “xcx” means, how Hernández’s outfit rates on the “Brat” scale and an evaluation of his physical stature.

Charli XCX already has a lot on her plate with doing double duty at Saturday Night Live this week, and now Marcello Hernandez is asking her to reveal her “real name.” Doesn’t he know the golden rule: never ask a man his salary,

Still not sure what Charli XCX means by “brat?” If the latest SNL promo is any indication, you’re not alone. With Charli XCX pulling both the hosting and musical guest gigs this week, she presented the perfect opportunity for some still-in-the-dark SNL cast members to do some digging.