Updated at 5:30 p.m. ET: Watch this video from one of Justin Bieber's fans on the plaza!
Original Post: Tween sensation Justin Bieber paid TODAY a visit Monday morning -- and the response was amazing.
Fans flocked to the plaza, some camping out overnight to catch a glimpse of the celebrity.
The first two photos on the right are from the tweeter "@alexalovesjb."
She posted these two photos below to Twitpics after Justin held her hand and signed her phone!
And watch Justin's full interview on TODAY below.
Watch his interview below: