The entire band of <a href="http://www.musicsoundoff.com/artists/aerosmith/">Aerosmith</a> has a great cameo in Wayne's World 2. First the boys attend their concert. Then they play at Waynestock as seen in this screenshot.
Wayne: Excuse me, what are you guys doing here in the middle of the street? Chicken-man: Well, I'm putting these chickens in crates, and stacking them right here. Jim's job is to make sure we always have plenty of watermelons. Wayne: Oh, so you're selling watermelons. Jim: No, no sir. We just have to make sure we have plenty of them stacked at all times, just like with these here chickens. Garth: What do these guys do? Chicken-man: Well, their job is to walk back and forth with this big plate-glass window every couple of minutes. Garth: Weird. Wayne: Yeah, you've got to wonder if this is gonna pay off later on.