Kind-hearted, hot-bodied supermodel Petra Nemcova has joined the cast of the new season of Dancing With the Stars.

We dont know yet what kind of dance moves the 31-year-old has, but we do know that she flexes an impressive charitable muscle.

Petra is the founder and chairwoman of the Happy Hearts Fund, an organization devoted to improving the lives of children in areas hit hard by natural disasters. So far it has built or rebuilt 47 schools and benefited 31,000 children.

For a time, Nemcova was known mainly as the beautiful woman whose fiance died in the 2004 Thailand tsunami while they were vacationing. It was an unimaginable tragedy, but Nemcova has come out stronger. She is now planning her wedding to actor Jamie Belman.

Good luck on the dance floor!

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