I always thought it was Midnight Star...

[Mike Mercury]

but it wasn't. Donkey scene from Bachelor Party had a song by the group Torch Song; song was "Prepare to Launch"

http://i2.listal.com/image/2005526/500full.jpg

http://www.youtube.com/watch?v=SyaBRJyK7CU


http://www.youtube.com/watch?v=9wmoI7ldMuc

[Thunder22]

Thank God you cleared that up... whew...