Maddie Aldridge is one lucky lady!

Britney Spears posted the sweetest video on Instagram on Thursday, which shows her sister Jamie Lynn Spears and the country singer's fans singing "Happy Birthday" to Maddie, who turns 6-years-old today.

The blonde cutie looks really excited to be onstage with her famous mama -- check out the sweet video above!

"Wishing a very Happy 6th Birthday to Princess Maddie!! Wish I was there to sing Happy Birthday to u xo," Britney captioned the video.

Jamie Lynn reposted a screen grab of the photo on her Instagram page, adding "We wish you and the boys were here too!!!"

It's crazy how much the former child star's kid has grown over the years, and we especially loved seeing her as the flower girl in her mom's wedding back in March.

See how she's grown through the years below!


Hot Videos