Several country stars will appear on the Jerry Lewis MDA Telethon this Labor Day weekend. Reba McEntire, Billy Gilman, Dwight Yoakam, Tammy Cochran, Mickey Gilley, Sara Evans and the Oak Ridge Boys are scheduled to appear on the annual Muscular Dystrophy Association fundraiser. Vince Gill, Alan Jackson, Charley Pride and Steve Wariner taped telethon segments at the Grand Ole Opry in recent weeks. Beginning at 9 p.m. ET Sunday (Sept. 2), the telethon will air for 21½ hours on more than 200 TV stations. 08/31/01