Justin Bieber made a lot of tweens (and their parents) really happy yesterday when he extended his meet and greet for his book First Step 2 Forever at Barnes and Noble in New York to accommodate the extra 1,000 fans that lined up in the rain to meet him. Say what you will about Justin, but he’s a sweet kid.

He was originally late to the signing due to traffic but promised to stay late and even extended the amount of people he would be willing to see from 1,000 to 2,000.

He tweeted:

“Sorry we are late… My fans are the most loyal passionate people ever. Super grateful. thank u… We got a lot more people to see… I’m not leaving until I keep my promise. Thanks for everyone being so cool about (this).”

When it was all said and done:

“Finished the signing in the NYC. Had to show love. We let 1,000 more people in. Love y’all. wish I could let the whole world in.”

Every generation has their teen heartthrob and the Biebs is it. To be gracious and nice on top of that is awesome. More celebrities should be like that. His hand must have been killing him!

Is it me or does he look like he’s changed in these photos? It’s like he’s growing up right before our eyes!

Photos:  Michael Carpenter/WENN