When Lady Gaga signed up last year to work with MAC on the Viva Glam campaign I don’t think anyone, including MAC, could have anticipated how incredibly successful it would be. Since the Viva Glam campaign started in 1994, over $190 million has been raised for the MAC AIDS fund. MAC is now reporting that the Gaga campaign, which also stars Cyndi Lauper, has been its most successful to date. So it’s no surprise then to see that Gaga is coming back for more. WWD reported this morning that Lady Gaga will once again be the face with Viva Glam in 2011 and will shot by Nick Knight and styled by Nicola Formichetti.