Harper Beckham is growing up before our eyes, but it seems David is having a bit of hard time watching his little girl grow up. On Monday, David posted a photo of himself looking a little sad while giving Harper a haircut. "Someone's happy 😃 & someone's not so happy ✂️," David captioned it. "I didn't think it was possible for this little one to look anymore beautiful but ♥️." Aw! Harper's exciting hair milestone comes just weeks after she rang in her seventh birthday. This year, David and Victoria threw Harper a party that featured a "birthday ride" on a horse and cute tea party.