Jay-Z and Beyonce in 2003 and 2011, aging well. (L) Frank Micelotta, (R) Julio Cortez/(L0 Getty Images, (R) AP hide caption

itoggle caption (L) Frank Micelotta, (R) Julio Cortez/(L0 Getty Images, (R) AP

With a combination of a violin and trumpet in hand, this street musician shouldn't have a problem competing for customers with others. celesteh/flickr hide caption

itoggle caption celesteh/flickr

Rick Astley never really gave up anything, until he was offered the chance to cover Roy Orbison's famous song "Pretty Woman" for the movie of the same name. m-alo/flcikr hide caption

itoggle caption m-alo/flcikr

Ok Go performing "What to Do" -- through the use of only bells -- off their self-titled debut album. Ciro Boro - photo/flickr hide caption

itoggle caption Ciro Boro - photo/flickr

There's one artist you're bound to find on any list: the latest act more famous for ‘being big on Twitter’ than selling records. and_she_was/Flickr hide caption

itoggle caption and_she_was/Flickr