The "Umbrella" singer is belting out another tune these days: "It's easy, breezy, beautiful CoverGirl." In her inaugural ads for the new beauty campaign, Rihanna touts a mean pout with CG's Wetslicks Fruit Spritzers lipgloss. But she admitted to PEOPLE that her must have product is, "Concealer. It is so important for under the eyes because it just wakes you up." As a tomboy in her younger days, Rihanna, 19, was not allowed to wear makeup. "I would sneak and do it," she says. "My mom is a make-up artist so I really wanted to put on makeup and she wouldn’t let me because I was always too young. And now I can because I'm a Cover Girl." A true product junkie, Rihanna's favorite on-the-road pastime is not going to the hottest clubs, instead it's going to CVS! "When me and my best friend get bored at night we go to CVS to buy a bunch of stuff to try. I like different color eyeliner, I love different shades of lipsticks and lip glosses, anything with colors." Bright colors are perfect for her summer album promotional tour along with her new edgy bob haircut. Rihanna is definitely a "Good Girl Gone Bad"!

Rihanna's "Good Girl Gone Bad" available June 5th, $9.99 amazon.com. CoverGirl Wetslicks Fruit Spritzers available in July.

Photo: Steven Williams