Misc: which new wave icon appears as himself in the film the wedding singer?

Questions

the main street in back to the future is also the main street in what other 80's movie?

in grease two what does stephanie want in a boyfriend?

what brand and color of underwear is marty wearing in back to the future?

in "the karate kid" what color did daniel have to paint miagi's house, as part of his training?

in national lampoon's vacation, what did the griswalds call their ugly green station wagon?