Arcade Fire song has emerged on YouTube – watch ‘Rabbit Hole’ below.It’s come from their last-minute Ukraine benefit concert in New Orleans earlier this week (March 14), where the band also performed two other unreleased tracks.Taking place at Toulouse Theatre, all proceeds from the “pay-what-you-can” gig went to benefit the Plus1 Ukraine relief fund, which is supporting Ukrainian people through non-profits providing humanitarian aid as Russia’s invasion of the country continues.The gig was live-streamed via TikTok and Instagram, and snippets from that recording sees the band performing ‘Lightning I, II’, a song they recently revealed would be released this Thursday (March 17).The band also performed a second unreleased track, ‘Age Of Anxiety’. The song borrows elements from ‘Memories Of The Age of Anxiety’, a 45-minute instrumental ambient track they released for a meditation app last year.