Britney Spears has added one more piece to her puzzling comeback. After releasing her first single from her upcoming sixth studio album, the pop princess and her team have made public cover art for “Circus,” which is scheduled to be released on December 2, the same day the artist turns 27.

A sexy Britney on a colorful background seals the 13 tracks of the pop icon’s forthcoming product that hosts “Womanizer,” a hit for which the singer filmed a video. The No. 1 track broke several chart and radio records, including the biggest digital debut of any female artist since Nielsen SoundScan started monitoring, and highlighted Britney Spears’ road back to the top after a long period of personal problems.

The skin revealing clip directed by Joseph Khan, who also helmed the videos for “Stronger” and “Toxic,” portrays a tempting Britney Spears, who wears wigs and is dressed in a waitress’ uniform, while seducing a guy on the kitchen floor.

It has also been announced that the artist’s second single will be the title track, “Circus,” produced by Dr. Luke and Benny Blanco.

“The song is an up-tempo track,” explains the 26-year-old singer’s official Web site, adding that it would be extremely “crazy.”

The long-awaited CD includes, beside “Womanizer” and “Circus,” 10 other songs, “Out From Under,” “Kill the Lights,” “Shattered Glass,” “If U Seek Amy,” “Unusual You,” “Blur,” “Mmm Papi,” “Mannequin,” “Lace and Leather,” “My Baby,” as well as a bonus track entitled “Radar.”