Foo Fighters were joined onstage during their Saturday night (July 14th) show in Wantagh, New York by actor John Travolta, who sang along and did a few dance moves as the band performed a little of “You’re The One That I Want,” from Travolta’s hit 1978 movie Grease. The band was also joined during their set by Red Hot Chili Peppers drummer Chad Smith, who got behind the kit for a cover of the Faces‘ “Stay With Me” while Foos drummer Taylor Hawkins handled lead vocals.

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