The body of work behind Joan Rivers' Go Daddy Super Bowl ad is showing off her goods via her Facebook account.

Bisexual model Tabitha Taylor, who has done previous commercials for Go Daddy, generously lent her curvy figure to the TV spot ... and gave Joan's look a complete overhaul.

As for Joan, she joked on her Twitter account, “Yes, yes, yes, it’s my body in the @GoDaddy ad. The New York Knicks can’t be the only ones to share in this pleasure."

Taylor has appeared as an extra in numerous movies like Dude Where's My Car.

Tabitha is an instructor for a hard-core sport. Find out which one after the jump ...