On Thursday, Armitage brought the "Soft Kitty" tradition to life by singing it to Jordan's real ... m proud to be her Uncle ...

which stars Montana Jordan and Emily Osment, but they’ve also been reuniting off-camera. For example, Iain Armitage and his TV mom Zoe Perry recently got together, and both fans and the Sheldon ...

Montana Jordan and Emily Osment chat with ET about 'Georgie and Mandy's First Marriage,' premiering Oct. 17 on CBS. Iain Armitage meets 'Young Sheldon' on-screen brother Montana Jordan's baby ...

Iain Armitage meets 'Young Sheldon' on-screen brother Montana Jordan's baby while paying homage to 'The Big Bang Theory.' 'Young Sheldon's Iain Armitage Sings 'Soft Kitty' to Co-Star's Baby Iain ...

With Jim Parsons, Iain Armitage, Montana Jordan, Lance Barber, Zoe Perry, and Raegan Revord. Produced by Chuck Lorre Productions. Airs on CBS. Shoots in Los Angeles.