Liam Hemsworth is one lucky guy!

Miley Cyrus stripped down to participate in Marc Jacobs' "Protect The Skin You're In" campaign, which raises money for the New York University Skin Cancer Institute.

The "We Can't Stop" singer debuted the sexy snapshots on her Twitter account with the caption, "Ts are available at 9 Marc Jacobs boutiques including SanFran, LA, Chicago, New York, Boston, and Savannah GA!"

Other celebs that have bared all for the good cause include Victoria Beckham, Miranda Kerr, Heidi Klum, Dita Von Teese, and Naomi Campbell.

Miss Miley's daily pilates sessions have really paid off!