Robert, 21, who is the son of Terri Irwin and the late Steve Irwin, showed off his sculpted abs as he announced he’ll be starring on season 34 of Dancing With the Stars on Tuesday, April 22.

"I do also want to see how ‘Dancing with the Stars’ can incorporate khaki…," Robert said of his upcoming ... Yes, I don't think that shirt's lasting long,” Irwin said.

Robert Irwin is ready to bare it all on Dancing ... Yes, I don't think that shirt's lasting long,” Irwin said. “You've got to have mobility. You can't let it get in the way." ...

Robert said of his upcoming stint on the celebrity dancing competition Madison E. Goldberg Tue, May 13, ... Yes, I don't think that shirt's lasting long,” Irwin said. “You've got to have mobility.