Important question: Who among you knew that 'Tonight Show' host and all-around funny guy Jimmy Fallon was also a skilled harmonica player?

Somewhat related: Who among you knew that Russell Crowe has a background in fronting badly-named rock bands?

If you already knew both these things, last night's 'Tonight Show' performance of Johnny Cash's 'Folsom Prison Blues' probably won't surprise you much, but if you've been in the dark on these talents, get ready.

'Noah', starring Crowe, Emma Watson and Jennifer Connelly, is in theaters now.