Wilco have concluded their Sky Blue Sky festival in Mexico with guest appearances from Pavement frontman Stephen Malkmus and Spoon frontman Britt Daniel during their headlining set.The band brought out Malkmus to sing lead vocals on a cover of Pavement’s 1994 single ‘Cut Your Hair’, a song Wilco have covered several times over the years. Daniel, meanwhile, was enlisted on vocals and acoustic guitar during a performance of ‘Kamera’, lifted from Wilco’s 2001 album ‘Yankee Hotel Foxtrot’.