Would you sing a song for a man speaking from a gas pump?

Will did — and his impromptu performance so impressed the Tonight Show pranksters behind the stunt that he ended up entertaining millions in an NBC studio.

In the middle of a suburban gas station, without any accompaniment, the bartender belted out Bon Jovi's Livin' on a Prayer while his wife howled with laughter.

Not only that, when asked for a duet by the man in the gas pump, his wife, dressed in baggy sweatpants and bandana, got out of the car and sang a pitch perfect "Sweet Dreams" by the Eurythmics.

The two-way camera mounted in the gas pump, along with cameras surrounding the car videotaped the whole scene as Will and Monifa Sims were prompted to sing more.

Jay Leno was so impressed that he invited the pair on his show. He said it was rare to see a couple so happy together. They sang with the Tonight Show band and led the entire audience, including Jay, in a rowdy clap-fest.

This just confirms that it might pay off to step out of your comfort zone, if prompted…

(WATCH the fantastic video below)

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