By Amanda Wicks

(RADIO.COM) – After premiering his narrative film Geezer at the Tribeca Film Festival on April 23rd, Green Day’s frontman Billie Joe Armstrong put on a show at Spring Studios. Lo and behold, Joan Jett, who also appears in the film, made an appearance.

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Jett only joined Armstrong for a little while. The two played a brief portion of Green Day’s “American Idiot” before segueing into Jett’s “Bad Reputation,” which became the focus of her time onstage.

According to Billboard, Armstrong launched his set with one of the songs he composed for the film, “Devil’s Kind.” Geezer follows an aging punk rocker as he becomes more of a family man. He and Green Day’s drummer Tré Cool along with guitarist Jesse Malin performed other songs from the band’s oeuvre before Jett joined them onstage. Speaking about the band’s bassist Mike Dirnt, who wasn’t able to perform that night, Armstrong told the crowd, “Mike’s gonna be pissed.”

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Watch below Armstrong and Jett jam together below, assuming you can see through the sea of cell phones.


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