Ice-T
No, his real name is not Ice-T. Known to his parents as Tracey Lauren Marrow, the SVU actor was a mere eight years old when he lost his mother. Four years later, his beloved father suffered a heart attack that took his life. Ice-T was forced to move to Los Angeles to live with his aunt, who eventually adopted the star. He began acting while living in the city.
Tim McGraw
This celebrity is actually the secret child of another celebrity. Raised by Betty Smith, it wasn't until 1967 that singer-songwriter Tim McGraw learned that his father, Horace Smith, was not his biological father. At age 11 he discovered that Horace was not his dad, but it was actually a professional baseball player, Tug McGraw. The player abandoned the family after learning that Betty was pregnant. The two didn't begin a relationship until Tim was 18.