Barcelona festival set didn’t preview any new songs
Will Butler teases band's fifth record
Band performs as part of street artist's new exhibition
'The piano sounds throughout are homey, dull and creaky in a lovely way,' Butler adds
The pair were backed up by a band featuring members of Yeah Yeah Yeahs and TV On The Radio
The pair jammed it out at Okeechobee Festival this weekend
The Canadian band will receive the award for their work supporting Haiti
Régine Chassagne and Win Butler at Montreal’s Society for Arts and Technology event
Butler also announced that he was "retiring as a celebrity"
Band perform 'Heroes' in New Orleans