Justin Bieber, Victoria Justice at Nickelodeon Upfront today!

Today, M magazine caught up with stars like Victoria Justice, the guys of Big Time Rush, Miranda Cosgrove, and last but not least, Justin Bieber!! Check out our photos below and clips of JB's LIVE performance of his new hit single, "Baby"!!

Victoria Justice looked extra-pretty when she presented a clip from her upcoming Nickelodeon show, Victorious!

 Victoria Justice looked extra-pretty when she presented a clip from her upcoming Nickelodeon show, Victorious!







































JBiebs looked super-cute as he serenaded the crowd and mademe melt!
Check out JB's "Baby" performance below!!