It's kinda great.
The 'Rocknmob' is back and this time they've got 130 people to cover Linkin Park's 'What I've Done'.
The group of musicians gathered in Gorky Park, Moscow to perform the cover, whilst members of the public gathered nearby and wondered what the bloody hell was going on.
Watch the full video of the music-mob below.
Linkin Park are currently in the studio working on their seventh album.
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