Heidi Klum went all out to celebrate her son Henry’s 21st birthday. “I can’t believe it is that time,” Klum, 53, told Henry in an Instagram video shared Saturday, September 12, sharing footage of the moment she gave her son his birthday present waiting in the driveway. “You’ve been waiting for so many years.” The camera panned, revealing that Klum and her husband, Tom Kaulitz, purchased a Ferrari F430 in honor of Henry’s special day. “Oh my God! Jesus Christ,” Henry exclaimed in the clip, getting a glimpse of the cherry-red sports car. “I don’t even know what to say.” Heidi...