Watch Saoirse Ronan Explain The Beauty Of Irish Lock-Ins To Jimmy Fallon

There's our gal Saoirse, schooling everyone in the States on sing-alongs in the pub and drinking with the pub owner during a lock-in.

Jimmy seemed a bit weirded out that someone would lock you into a pub, but thankfully Saoirse was there to set the record straight about Irish culture once again.

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