Joey King "cried" when she saw Sabrina Carpenter live in concert

Alongside a selfie of them both after the show, Joey wrote on Instagram: "I got to see my wife perform in chi town last night and I cried of course, she's just the shortest and sweetest pop star I've ever seen

In a nod to a track from Sabrina's latest smash hit album, she wrote: "I might let her make me Juno."

Joey also shared a montage of clips of herself during the concert, in which she was seen dancing to the tracks 'Please Please Please' and 'Good Graces' whilst her friend was on stage at the United Center.

In a second post, Joey wrote: "I love you my brina. perfect girl. perfect show. Feel so lucky to watch you shine."

Joey previously revealed that she and the 'Espresso' hitmaker have actually known each other since they were teenagers in showbusiness, but it wasn't until after they both initially shot to global fame that they became as "close" as they are now.

She told Rolling Stone: "Funny thing is, her and I have always known each other and we've always been friends, but we didn't become as close as we are now until like around four or five years ago.

"But we've known each other for over ten years."

Joey started her career as a child when she starred opposite Selena Gomez in the 2010 comedy 'Ramona and Beezus'.

Similarly, Sabrina landed a main role on the Disney Channel sitcom 'Girl Meets World', just a couple of years after she placed third in a nationwide contest to find the "next" Miley Cyrus, at a time when the 'Flowers' hitmaker was starring in 'Hannah Montana' for the network.

Recalling how they met, Joey said: "[We] first met many many years ago at, like, a charity event. Sabrina came over to me and was like, 'Hi, I'm Sabrina!' "What's funny is we weren't always super close.

"For the first several years of our friendship, we would hang out like once every year and it was the funnest thing in the world, we don't know why it took us so long to become as close as we are now."