A heartwarming video has emerged of a man surprising his best friend for his 30th birthday.<br /><br />The footage, shot in Manila, Philippines, on Saturday, shows the moment Dave O' Callaghan hears his best friend Noel Whelan singing "Happy Birthday" behind him in a pub before they hug and laugh uncontrollably with each other. <br /><br />Dave, who moved to the Philippines four years ago, had not seen his best friend for about a year and a half.
