Tom Petty: What was the name of Tom Petty and the Heartbreakers' 1991-92 tour?

Questions

Frank Stallone, Sly's brother, had a hit with a song from this movie.?

This Whitney Houstong song was used for the 1988 Summer Olympics.?

George Michael first hit #1 as a member of which duo?

What colour was Bombalurina's teeny-weeny polka-dot bikini?

Which relative features in a Hollies song title?