There's a new member of the 21 Pilots family! Over a week ago, on February 9 Tyler Joseph and his wife, Jenna, gave birth to the most precious little girl, whom they named Rosie Robert Joseph. The two shared the happy news on Jenna's personal Instagram profile, along with a view into their life since they've become parents. According to Jenna's Instagram, they've nicknamed the newborn Ro and are clearly adjusting well to life as a family of three.