Here's a great mashup that brings us an opening title sequence for The Avengers but with the original Mighty Morphin' Power Rangers theme song! The video was edited together by YouTuber UnusualSuspect2011, and it turned out to be pretty fun!
I guess Iron Man is the Red Ranger, Captain America is Blue, Hulk is Green, Thor is Yellow, Black Widow is Black, and Hawkeye is... Pink? I guess that works, enjoy the video!