, Michael Keaton had long been one of America's most beloved actors. On Sunday, the 63-year-old father reminded us why he's adored while accepting the Golden Globe for Best Performance by an Actor in a Motion Picture - Musical or Comedy. "My best friend is kind, intelligent, funny, talented, considerate and thoughtful ... he also happens to be my son, Sean
," Michael said while cradling his award on stage. "I love you with all my heart, buddy." Backstage Michael explained their bond to Nancy, saying, "He and I've been together since he literally came out of the womb." Sean, 31, is a songwriter and producer, who has put his fingerprint on a number of hits, including "Heart Attack" by Demi Lovato, "Ghosttown" by Madonna, and Jason Derulo's "Wiggle" and "Talk Dirty." Sean is also an actor, having starred in the 2009 short After Life
. In it, he plays a young musician who falls in love with a girl at a coffee shop.