VIDEO: Super footage of the Irish fans singing at the top of their voices on Edinburgh train

"We all dream of a team of Sean O'Briens..."

Gary Breen, your song is in jeopardy. Last night's Six Nations triumph has seen Sean O'Brien propelled to Breen-esque heights in Irish society - every sportsperson's dream - as the Irish fans refused to go quietly through the Scottish capital. Footage has emerged of green-laden fans returning from Murrayfield absolutely lighting up a train in Edinburgh. The champions' supporters are heard shouting the name of Sean O'Brien instead of Gary Breen's in that famous Yellow Submarine tune. The craic looked good. We wonder if any of them are even home yet. https://twitter.com/ClarkeAoife/status/579720676493430784