Linkin Park played an impromptu gig at the premiere of the new Transformers film.
The rockers delighted their fans with the spontaneous set at the Los Angeles screening last night.
The band, who scored the soundtrack to the action sequel, announced on the red carpet at the Mann Theater that they would perform a full concert after the movie showing.
They then erected a small stage in the street to play to movie fans, who had waited hours to spot the film's stars arrive at the event.

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