Aussie Slang: Go off like a bucket of prawns in the hot sun?

Questions

Singer of de rigeur wedding song: "Longer" (than any bird ever flew, etc.)?

Their song "Slow Ride" was revived in the movie "Dazed and Confused"?

This ballad was originally in Spanish and was called "Dime" (tell me)?

Captain Beefheart's real, full name?

He took a plunge with the "Chantilly Lace" guy?