Stop the presses!!
In all honesty though, we're a bit shocked!
Justin shared the photo on Sunday and captioned it:
[Image via Justin Timberlake/Instagram.]
There were TWO Mrs. Carters at Beyoncé's London concert.
Well, one Mrs. and one Lil' Miss!
Ch-ch-check out the video (above) to see the amazing footage from Saturday's show where Bey brought her Bey baby Blue Ivy Carter onstage for a little dance duet during Irreplaceable!
If you want to skip right to the Blue moment, you can see it at 5:45!