Justin Bieber's Estranged Mom Hung Out With Kourtney Kardashian AND Hailey Baldwin At Her Son's Concert! (PHOTOS)

It looks like Justin Bieber and his mom, Pattie Mallette, aren't so estranged anymore, after all! The proud parent attended the soulful singer's Purpose World Tour concert in El Lay Sunday night, and even hung out backstage!

But the 39-year-old wasn't alone!
She also bumped into her son's supposed former fling, Kourtney Kardashian, and there's even Periscope proof!check out a screenshot of the lovely ladies being all friendly (below)!

And while we already knew the reality star was one of the famous faces in the crowd, she wasn't the Biebs' only past lady love in attendance!

Hailey Baldwin — who is currently single after getting all cozy with the 22-year-old during a tropical getaway -was also posing for pics with the blonde babe's momma!

Take a look (below)!