Many instantly recognize him as Kevin McCallister from Home Alone. With his adorable nature and leading roles, Macaulay Culkin was the ultimate child star of the 1990s and became an A-List actor in his own right at a very young age. He was known on-screen as a cute and mischievous kid but off-screen, there were many tension building up. Culkin's life later took a drastic turn and led this once-lovable Hollywood wunderkind to a dark lifestyle nobody expected. From his much-questioned relationship with Michael Jackson to his strained relationship with his family, here are the little-known details of Macaulay Culkin's unusual childhood.