Haven't tried this the latest crop of M.A.C. Viva Glam lipsticks yet? Inspired by Lady Gaga and Cindy Lauper, the pout pleasers were launched this past spring and are still selling strong.

And now, this September, the brand is releasing two limited-edition complementary shades of LipGlass -- Gaga is a cotton-candy pink and Cindy is a reddish coral. Both equally heart-able, and, thanks to their sheer formulas, a little easier to wear.

The singers are featured in M.A.C.'s "From Our Lips" campaign, designed to speak to the challenges women face as the fastest new group affected by HIV/AIDS around the world.

Cheers to the ladies for all their support for women affected by HIV/AIDS!

Are you a M.A.C. lover? Check out their latest nail collaboration with fashion-favorite manicurist Jin Soon Choi.