Donny Osmond Reacts to First ET Interview and Being Part of Britney Spears' Launch | rETrospective

Donny Osmond’s Las Vegas residency at Harrah’s Las Vegas returns on Sept. 5. Plus, he's taking his Vegas show on tour starting July 18. Donny also reacts to his first ET interview, his first TV appearance and being a part of Britney Spears’ TV debut. Plus, he explains not knowing how much his work with sister, Marie Osmond, would blossom all over the world.