1. Robert Downey Jr
At this point I'm kind of wondering if there are any Avengers who aren't talented singers. Because I mean seriously, maybe they should have a musical. Joss Whedon knows all about writing musicals. It could work. But come on...genius billionaire playboy philanthropist musician? Not fair at all. There are plenty of examples of him singing over the years, but I'm feeling a little nostalgic, so I'm going to bust out some classic RDJ. The episode of Ally McBeal where he sings with Sting. Because you can't just walk off the street and sing with Sting. I mean, that's not something just anyone can do. He's also got an album out called The Futurist, so go check that out. Like, now.