Music Winners 2014: Taylor Swift, Dr. Dre, U.K. And Its Former Colonies

This past weekend, Taylor Swift found herself celebrating her 25th birthday in grand fashion: by closing out the annual z100 Jingle Ball at Madison Square Garden in front of nearly 20,000 people, including Sam Smith, Iggy Azalea and Calvin Harris.

“New York City, it’s good to be home!” she yelled toward the beginning of her set.

A recent arrival in the Big Apple, Swift should also feel at home with the aforementioned names who watched her set after gracing the stage before her — all of them are...