Vincent Pastore is hanging up his dancing shoes before they have even hit the floor.  The 'Sopranos' hit man was announced as a member of the star-studded line-up, but now he's out.

He released this statement...

"I didn't realize just how physically demanding it would be for me. Unable to put forth my best effort, I felt it appropriate to step aside and give someone else the opportunity."

He's a pussy!  (sorry, I had to)

No word yet on who will replace him.