Today is "Celebrate Bisexuality Day," check out a bunch of celebs who have identified as bisexual.

Nicki Minaj and Ricky Martin have teamed up for MAC Viva Glam’s latest campaign. David La Chapelle captured Nicki and her flawless pink wig and dress on top a blue motorcycle in this colorful ad for the makeup heavyweights. All the proceeds from the two pink VIVA GLAM lipsticks go towards the fight against HIV/AIDS. […]