The annual celebration of iHeartRadio Ball was held in New York City at Madison Square, Dec. 12. The said Christmas celebration gathered big time stars of this generation making 2014 Jingle Ball worth celebrating end enjoying. The red-carpet was jam-packed, yet making it more fun and memorable with Iggy Azale, Ariana Grande, Gwen Stefani, Taylor Swift, Pharrell Williams, Charlie XCX, and of course Jessie J on stage singing and dancing!

On that day Taylor Swift performed at Madison Square singing her top hit! Fans are cheering, singing, and dancing together with Swift acknowledging her presence. But time flies too fast, yet she never stopped there because the party continues to explode...she never gave the stage!  The Z100's iHeartRadio is 4-hour exploding marathon with year's top 40 hit stars. So, just imagine who fun and enjoyable could that be, a great way to welcome Christmas.

Aside from non-stop party, stars also got the chance to show-off their fashion and trends. Like in case of Ariana Grande who is always an attention-grabber because of her fashion statement wore antlers on her entire set. On the other hand, Jessie J was also as impressive as ever. She did "Burning Up" wearing all black at that time. Jessie joined Ariana singing "Bang Bang" number although Nicki missed it.  

Despite the blasting night of performance coming from different performers, the night belonged to Swift. She was introduced by Z100 DJ's as New York neighbor. Swift got that chance to wear tartan-plaid (two-piece) outfit and together with her own band, she announced "New York City, it's good to be home!" afterwhich, she started singing.

Few minutes before midnight, she was joined by other stars and they sang "I Knew You Were Trouble" as well as the song "Shake It Off" the roughed way version of it. Swift said, "I think I just officially celebrated my birthday."