"I want to go see the world and maybe bring new music," Katy Perry says.
The New Year's Day special reached 13 million total viewers.
While Mraz goes to the top, Jamie Lynn Spears goes out on "DWTS".
America voted, and the new "Idol" is presented.
Five became three as America cast its votes.
After tonight’s show, an even dozen stay in the game.
Team Niall's singers were hard to separate.
The duet that had all the makings of a LaLa Land special -- drama, struggle, tears and success.
The Hottest 100 poll is an institution Down Under, one that triple j has called the “world's biggest musical democracy.”