QUEEN LATIFAH, TIFFANI THIESSEN SIGNING ON FOR NEW SEASON OF ‘DANCING WITH THE STARS’

Queen Latifah  and Snooki  will sign on to do the next season of "Dancing with the Stars" ... sources connected with the show tell TMZ.

And, show sources tell us, Tiffani Thiessen will also be a contestant.

As TMZ has already told you, Rob Kardashian will also compete.

Producers have said they wanted to upgrade the contestants for the new season, which begins next month.