Amnesty International said Monday the trial `` never should have taken place . '' Three members of Pussy Riot are on trial , facing a potential seven - year sentence . They perform an anti - Putin concert in London 's Christ Savior Cathedral . Alex Kapranos of Franz Ferdinand and Pete Townshend of The Who want them set free . Their open letter comes as Vladimir Putin visits London .
Three members of Pussy Riot are on trial , facing a potential seven - year sentence . They perform an anti - Putin concert in London 's Christ Savior Cathedral . Alex Kapranos of Franz Ferdinand and Pete Townshend of The Who want them set free . Their open letter comes as Vladimir Putin visits London .