10 Most Iconic Tracks From Supernatural

Now, this entry certainly features an iconic Supernatural moment, but it's less Dean Winchester and more Jensen Ackles. Still, when an actor has this much fun on set, the moments find a life of their own.

The episode "Yellow Fever" (season four, episode six) shows Dean getting infected by an illness that causes him to be afraid of everything. During one scene, he tries to psych himself up by listening to the classic workout hit "Eye of the Tiger". The sequence in itself is entertaining enough, but it's the real-life addition that really caught the fan's attention.

During the filming, Ackles spontaneously decided to lip-synch the entire damn song, leading to a hilarious performance with some impressive air/leg guitar and tons of passion. The outtake was funny enough to be inserted at the end of the episode as a little treat for viewers.

It's the kind of lip-synch that would have RuPaul cheering in ecstasy, so you'd better believe it had fans in stitches too.