Donny Osmond and Marie Osmond Christmas Show at The Flamingo Hotel and Casino, Las Vegas, Nevada - 03.12.08

The Puppy Love singer let the news slip during an appearance on a recent taping of The Bonnie Hunt Show.

Osmond told actress/presenter Hunt, "I am seriously considering doing it, let?s put it that way,? adding, "I guess I just let the cat out of the bag.?

Sister Marie, who joined her brother on the chat show, was a hit during the fifth season of the hit show, and big brother Donny is determined to do better than his sister - and win the dancing crown.

He added, "I can?t let my sister upstage me. Besides, who do you think taught her how to dance??

Source: WENN