The School of Rock star admits he's yet to tell four-year-old Sammy and Thomas, two, exactly what he does for a living - and he's keen to keep it that way.
Speaking at the Los Angeles premiere of his new movie Gulliver's Travels, he tells Access Hollywood, "I didn't bring my babies because they don't know I'm famous yet. I'm trying to keep it well-hid. They're like, 'Whatever. Daddy's Daddy.' They think I'm a salesman."
Black isn't the only celebrity parent keeping his star status under wraps from his little ones - the comedian's Shallow Hal co-star Gwyneth Paltrow recently admitted she had been hiding her profession from her two children, until her six-year-old daughter Apple found out she was famous from her classmates.