Meet Justin Bieber's ADORABLE Newborn Baby Sister!

Justin Bieber is all about the family!
Not only is he about to start his own with Hailey Baldwin but he’s also celebrating a new sibling!
Related: Justin And Hailey Are Slowing Down The Wedding Planning
Baby Bay Bieber is the daughter of Justin’s dad Jeremy and new wife Chelsey!
And OMG she has the chubbiest little baby cheeks! See Justin’s adorable intro AND the first pic ever courtesy of the proud poppa (below)!

Meet the newest Bieber, my baby sister Bay Bieber pic.twitter.com/ncXJFobmFV

— Justin Bieber (@justinbieber) August 17, 2018

SO CUTE!!!
[Image via Instagram.]