In PEOPLE's exclusive sneak peek at Tuesday night's season 9 finale, the quints dress up as 100-year-old "grandmas for the day" The Busby quints are gearing up for a school milestone on OutDaughtered.

The normally bustling Busby home is suspiciously quiet during TODAY.com's early morning video chat with parents Adam and Danielle Busby. The Busbys' rare all-girl quintuplets, who are now 9 years old, ...

Hazel Busby didn't learn how to swim as fast as the other quints. Here's what 'OutDaughtered' star Adam Busby explained. Early seasons of OutDaughtered showed Hazel lagging in learning motor skills.

The Busbys are hitting their milestones -- on their own time. In an exclusive clip from next Tuesday's season premiere episode of OutDaughtered, Danielle Busby gets emotional as she and her husband, ...

'OutDaughtered' stars Ava, Olivia, Hazel, Riley and Parker Busby turned 10 on April 8, marking a milestone birthday for the quintuplets The Busby quintuplets are growing up! OutDaughtered stars Ava, ...