Carol Brady to Mark Ballas Who's Yo Daddy?

8/27/2010 8:45 PM PDT

'Dancing with the Stars' -- Parental Guidance Requested

If Mark Ballas makes one false move on the dance floor, his dad will be only a Texas two-step away from meting out discipline -- because we've learned Mark's father is returning to "Dancing with the Stars."

Sources connected with the show tell TMZ ... 49-year-old Corky Ballas -- a retired professional ballroom dancer -- will partner up with 76-year-old Florence Henderson beginning September 20. 

It won't be the first time Mark will compete against his pop -- Corky partnered up with Cloris Leachman on the show back in 2008.