Move over, Miley Cyrus! MAC Cosmetics unveiled its newest Viva Glam spokeswomanon its Periscope account, and it’s ponytailed pop songstress Ariana Grande. She’s a perfect choice — the talented musician’s fame has skyrocketed since her single “Bang Bang” came out last Summer.Though most stars typically choose matching lipstick and Lipglass hues, Ariana surprised us. She selected a dark-plum lipstick (“to represent the bad girl in you”) with a sugary pale-pink gloss, which is meant to represent your inner good girl. “I think you should be able to play up both sides!” Ariana declared.If you’re worried about spending money so soon after the holidays, don’t. The star reminded us that it’s “guilt-free shopping.” One-hundred percent of the proceeds from her collection goes to the MAC AIDS Fund. Founded in 1994, the organization is committed to addressing the link between poverty and HIV/AIDS by supporting diverse organizations around the world. So far, MAC has raised over $380 million with its Viva Glam campaigns, and we’re positive Ariana’s lip shades will be responsible for many donations. Keep reading to shop the gorgeous shades!