A cute video of a young Irish fan of UFC star Conor McGregor singing about his idol ahead of Saturday's boxing match with Floyd Mayweather.<br /><br />The clip, which was filmed in County Offaly on August 25, 5-year-old Jake Hegarty from Dublin strums a guitar and sings "you'll do nuttin'."<br /><br /><br /><br />++CLIENTS PLEASE NOTE: THIS VIDEO HAS BEEN LOOPED++ +
