This is certainly not your average beauty commercial: MAC Cosmetics has released its latest Viva Glam campaign video, starring Lady Gaga.

The pop star can be seen applying nude lipstick, but beauty ad tradition stops about there. Gaga can be seen surrounded by (Damien Hirst's?) sparkling skulls and mirrors, being filmed through veils, and behaving in a ghostly manner in general.

The proceeds of Viva Glam benefit the MAC AIDS Fund, which donates to AIDS research. According to Estée Lauder, Lady Gaga and Cyndi Lauper raised $34 million for MAC Viva Glam last year, the same amount of money raised in the ten previous years of the campaign using seven different celebrities. The beauty brand hopes to raise $250 million with the star by 2012.

In other Gaga beauty news, the singer has confirmed that her first signature scent will smell of "blood and semen," inspirations that already translated into Etat Libre d'Orange's Secretions Magnifiques, by the way.

On the Australian radio show Kyle and Jackie O, she said: "[Blood and semen] is in the perfume but it doesn't smell like that - you just get the after feeling of sex from the semen and the blood is primal...[The blood] was taken out of my own blood sample so it's a sense of having me on your skin."

Watch the MAC Viva Glam video at