Billy Baldwin Hailey Unc Gives Bieber Thumbs Up!!!

1/10/2016 5:37 AM PST

Billy Baldwin -- Hailey's Uncle Gives Justin Bieber Thumbs Up!!!


Billy Baldwin says Justin Bieber's a great guy and has no problem that his niece Hailey has hooked up with him.

We got Billy in Hollywood Saturday night ... and the actor said he's only met Bieber once but it seems he cuts muster with the fam.