Chopard has announced a second collaboration with the undisputed Queen of Pop, Madonna, for her new album, Hard Candy, due to hit the stores on April 28. The album cover will feature Madonna showing off the “M-dolla” knuckle ring while in a provocative pose and donning a WWE-like wrestling title belt at the waist with a huge letter M.

Chopard Co-President Caroline Gruosi-Scheufele designed the ring exclusively for the pop legend. Madonna’s hip-hop pseudonym “M-dolla” is outlined in 258 brilliant cut white diamonds, incorporating a Chopard signature mobile diamond in the design of the letter M.

Madonna is also pictured on the album cover wearing a Chopard-designed diamond encrusted gold cross from the Happy Diamonds collection. The Swiss luxury jeweller previously teamed up with the Material Girl to design the pave diamond “Hung Up” necklace for her 2005 Confessions On A Dance Floor album.