Victoria Beckham's Dog Celebrates Brooklyn's 13th Birthday
03/05/2012 AT 03:25 PM EST
Victoria shared a photo on Twitter of the pooch donning a party hat Sunday. "Coco is celebrating Brooklyn's 13th birthday," she wrote.
The Beckhams welcomed Brooklyn in 1999, and after the baby's birth, David announced that "[A baby] is something we have always wanted." Thirteen years later, Brooklyn is a big brother to siblings Romeo, 9; Cruz, 7; and 7-month-old Harper.
No word yet on what the festivities for Brooklyn's big day entailed – or whether Coco was treated to a piece of cake!