Rick Moranis has released a Country Music album.

http://www.rickmoranis.com/

His conversion is detailed  here:

I can't believe Lord Dark Helmet is twanging. The scariest part is it doesn't sound bad. He wrote all of his own songs, and sings them too. When he was in Little Shop of Horrors he played his type-cast role. However, he did all the singing, even on the official soundtrack album which was commercially released.