Prince George is growing up so fast! He's almost a teenager! On Tuesday, Prince William and Princess Catherine celebrated their eldest son's 12th birthday by sharing a new video montage on Instagram taken during a family photo shoot earlier this year. In the video, George can be seen posing for photos and giggling with his siblings, Prince Louis and Princess Charlotte. Related: Harry Distancing Himself From Meghan To Reconcile With Royals! Ch-ch-check it out: View this post on Instagram A post shared by The Prince and Princess of Wales (@princeandprincessofwales) The parents also released a new official portrait taken by Josh Shinner. View this post on Instagram A post shared by The Prince and Princess of Wales (@princeandprincessofwales) Aww! He really is looking so much like his dad!!! Crazy! You can compare what William looked like at 12 years old HERE. Just one more year until George is a teenager! We hope he has a wonderful birthday! Reactions?! Share them (below)! [Image via MEGA/WENN] The post Prince George Celebrates 12th Birthday With Sweet New Family Video -- He Looks More Like Dad Than Ever! appeared first on Perez Hilton.