Conversation so far:
What happened to the Nitty Gritty Dirt band in 1969?
A cameo appearance in the 1969 musical western film, Paint Your Wagon.
What was the name of a song Nitty Gritty Dirt Band wrote for the 1969 musical western film Paint Your Wagon?
Hand Me Down That Can o' Beans.
What happened to the Nitty Gritty Dirt Band in 1971?
What was the name of one of the Nitty Gritty Dirt Band's albums?
Uncle Charlie & His Dog Teddy.
Are there any other interesting aspects about the Nitty Gritty Dirt Band's album Uncle Charlie & His Dog Teddy?
Embracing a straight, traditional country and bluegrass sound, the album included the Nitty Gritty Dirt Band's best-known singles and some of the first recordings of Kenny Loggins's songs.

Question: What other bands played at Ozark Music Festival?
Self-contained rewrite: What other bands besides Nitty Gritty Dirt Band played at Ozark Music Festival?