Luke Bryan has suffered many losses over the years and knows only too well how devastating it is.MORE: Luke Bryan's children star in emotional new videoAnd the award-winning country star was more than sympathetic towards some young fans who came along to his concert last week - who had recently lost their father.The star was playing on stage at Hartford's Xfinity Theatre at the beginning of August, and invited up two brothers to sing Drink a Beer with him to help honor their late father, Robert LaFranchise, who passed away earlier in the year from a heart attack.VIDEO: Luke Bryan surprised on stage by wife CarolineThe two boys had been holding up a T-shirt saying 'Our Dad died. Can we sing Drink a Beer together?' which resulted in the singer to bring them up to the stage and put on the T-shirt.MORE: Luke Bryan supported by fans as he marks bittersweet farewellMORE: Luke Bryan throws shade at 'pretend farmer' Blake SheltonThe incredibly touching moment was shared by many concert-goers on social media, with one fan writing on Twitter: "Not a dry eye in sight! 23k people in Hartford, CT supporting these boys who lost their Dad.