Well, she has always been interested in cavities.

Madonna has announced plans to embark on a 27-date world tour this summer, which she has saccharinely named Sticky & Sweet.

The global trek, supporting her newly chart-topping Hard Candy, kicks off Aug. 23 in Cardiff, Wales, and winds down in Miami Nov. 26. Writing on her official website, the singer says she will also pay visits to Mexico and South America later this year, though those show dates have yet to be revealed.

The Sticky & Sweet tour, targeting stadiums and arenas, will be Madonna's fourth with Live Nation. She recently signed a $120 million deal with the music monolith to handle all her tours, marketing and future albums.

Tickets for the first dates of the U.S. leg go on sale May 19. Full list of announced dates after the jump.

• Aug. 23—Cardiff, U.K.
• Aug. 26—Nice, France
• Aug. 28—Berlin
• Sept. 2—Amsterdam
• Sept. 4—Dusseldorf, Germany
• Sept. 6—Rome
• Sept. 9—Frankfurt
• Sept. 11—London
• Sept. 20—Paris
• Oct. 3—East Rutherford, N.J.
• Oct. 6—New York
• Oct. 7—New York
• Oct. 15—Boston
• Oct. 18—Toronto
• Oct. 22—Montreal
• Oct. 26—Chicago
• Oct. 30—Vancouver
• Nov. 1—Oakland
• Nov. 4—San Diego
• Nov. 6—Los Angeles
• Nov. 8—Las Vegas
• Nov. 11—Denver
• Nov. 16—Houston
• Nov. 19—Philadelphia
• Nov. 22—Atlantic City, N.J.
• Nov. 24—Atlanta
• Nov. 26—Miami