Wayne Crashes Cassandra and Bobby's wedding in this scene that parodies the famous ending to <a href="http://www.reelmovienews.com/movies/the-graduate/">The Graduate</a>.
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.
Cassandra: Wait, let me show you what I got at a garage sale. Wayne: What'cha got? Cassandra: Isn't that great? You've heard it? Wayne: Exqueese me? Have I seen this one before? "Frampton Comes Alive"? Everybody in the world has Frampton Comes Alive. If you lived in the suburbs you were issued it. It came in the mail with samples of "Tide". Cassandra: Look at this old one. Gerry and the Pacemakers. Wayne: Wow. That is old. You know, I bet those guys actually have pacemakers by now.