Usher and Foster's second child together, Naviyd, was born on Dec. 11, 2008, just over a year after his older brother.
In honor of Nav's 13th birthday, Usher gushed about his second-born in an Instagram post. "NAVIYD!!! Turnin the Big 13!!! My Silent Partner, Creative Director, Always Full of Ideas… You're 'The Good News' Wishing you the Happiest Birthday son!! Love DAD You are my favorite 13 year old," he wrote.
According to Foster's Instagram, Nav is quite the poet, having won a poetry contest and apparently performed his poem "in an English cockney accent."
