'Is This It' producer Gordon Raphael has reviewed the band's recent London gig
Julian Casablancas and co played an 18-track set to a star-studded crowd
The guitarist says he treats each show 'like it's my last' before backtracking on comments
The New York band closed the Spanish festival on Saturday night (May 30)
Third and final day of Spanish festival also saw performances from DIIV, Mac DeMarco and Foxygen
The band also features members of Au Revoir Simone and The Like
Band played first gig since August 2014 at at Shaky Knees festival last night (May 8)
The drummer has taken on the band's 'They Want My Soul' album cut
'I still think we could do cool things and I’ll do that,' the singer says in new interview