You learn something new everyday!
Christina Milian has been in the world of Hollywood for many years now, so of course she has friends in high places! But we had no idea she hung out with huge names like Katy Perry, Rihanna and even Kanye West!
Then again, we would imagine everyone wants to be her friend because she is so reliable. You can call her, beep her, if you want to reach her, if you want to page her it's ok! That's a great quality in a friend.
Larry Busacca/WireImage Check out the gallery below to see Christina and her surprise celebrity friends!
Tune-in to the hour-long Christina Milian Turned Up series premiere this Sunday, January 18 at 10/9c on E!