The 42-year-old rapper brought his 5-year-old son, Sire Jackson, to the Den of Thieves premiere in Los Angeles on Jan. 17, and the little guy was so proud of his dad, he gave him an adorable smooch on the cheek! The adorable father-son duo rocked matching Givenchy suits, and 50 Cent told ET on the red carpet that it was a major night for Sire. "This is a big movie, so it's a big night for him. It's the first time he's seen me twice my size. [I] get a chance to let him take me out," he said. Den of Thieves hits theaters Jan. 19.