PITTSBURGH (AP) _ Move over, Donny.

Donny Osmond has shed the colorful coat he wore on Broadway, and his 18-year-old nephew David is wearing it for the starring role in ``Joseph and the Amazing Technicolor Dreamcoat.''

Six of David's brothers also have roles in the touring production, scheduled to open in Pittsburgh today.

Showbiz runs in the famous singing family _ even among the second-generation Osmonds.

``I've been on stage since I was 4 years old, so in a way, I've had to be responsible for myself and learn to live up to commitment,'' David Osmond said.

He said his dad ``tried to discourage us a little'' from entering the entertainment business, but the brothers started a vocal group anyway.