After news hit the streets that Justin Bieber may have knocked up a 20-something year old groupie backstage at a concert last year, he hit up twitter with the following response:

That doesn’t necessarily mean that Justin’s “NOT THE FATHER” (in my Maury voice), but at least he’s not totally ignoring all the talk.

In addition to his twitter response, Bieber stopped by Jimmy Fallon’s late night talk show to perform ?(It?s Not My) Baby?”…

Kinda sorta but not really Justin! (but of course you already figured that out!

Fallon donned his Bieber gear and performed the song AS Justin, changing the lyrics to Bieber’s popular “Baby” song to match the paternity news.

It’s not my BABY… BABY… BABY… Oh! It’s not my BABY… BABY… BABY… Oh!”

** I can’t stop laughing… 😆

But wait…

How bout this flash back video of Justin himself really singing Billie Jean! The lyrics “the kid is not my son” just says it all huh?

VIDEO ~ Justin Bieber Singing “Billie Jean”

And since we’re on videos spoofing Bieber’s paternity test… you have GOTS to watch this HILARIOUS Maury Povich “Billy Jean” remix!

VIDEO: Maury Povich (Billy Jean) Paternity Test

So what do you think of The Bieb’s response to his baby mama drama?