'Tonight Show" host Jimmy Fallon tapped into his inner Jim Morrison when he jumped on stage with the Blue Collar Band at the Montauket in Montauk Saturday night to perform The Doors' classic "Roadhouse Blues," reports Newsday's David J. Criblez. The spontaneous performance was part of Montauk's fifth annual music festival. Fallon was in a jovial mood, drinking beer and going casual, trading in his designer suits for an orange hoodie, jeans and sneakers. During the song's quiet midsection, he instructed the full-house crowd to "get low" on the ground and they happily followed his lead.

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