Lady Gaga unveiled the artwork to her upcoming album, "ARTPOP," on Monday morning by debuting the image on Clear Channel billboards. The album cover features a nude sculpture of Lady Gaga done by acclaimed artist Jeff Koons. The 27-year-old singer took to Twitter to voice her nerves ahead of the image's release, saying, "I'm nervous and excited to share something that's such a piece of my heart. Something I cherish deeply. A real depiction of my mind through his." Led by the hit single "Applause," "ARTPOP" will hit stores on November 11. The sculpture itself will be unveiled at Gaga's album release party.