Song: Rolling in the deep
Cover: Linkin Park
Stevie Ray Vaughn's cover of Voodoo Child. Originally by Jimi Hendrix.
Halestorms cover of Fleetwood Macs Gold Dust Woman
My absolute favourite is the original cover for My Fair Lady. It shows Liza Doolittle, as a puppet, being manipulated by Professor Higgins, also a puppet, being manipulated by God (who looks remarkably like George Bernard Shaw, who wrote the original story, Pygmalion.)
"Hero" by Sabrinais is a cover of Enrique Iglesias's "Hero".