RTÉ arts and culture journalist Alan Corr and The Journal's resident Garth Brooks fan Christina Finn join us to look at the return of the country music superstar. Brooks is back in Ireland for five sold-out gigs - but what's the secret to his enduring popularity in Ireland? What happened to the 2014 concerts, and will this year's run be his last in Ireland?The Explainer is brought to you by The Journal. Providing open access to valuable journalism in Ireland has been the aim of The Journal for a decade. You can contribute to ensure we can keep questioning, investigating, debunking, explaining and informing at www.thejournal.ie/contribute/