Performers:

Katy Perry - "Unconditionally"

One Direction - "Story of My Life"

Ariana Grande - "The Way" / "Tattooed Heart"

Imagine Dragons - "Demons" / "Radioactive"

Pitbull featuring Ke$ha - "Timber"

Justin Timberlake - "Drink You Away"

Florida Georgia Line featuring Nelly - "Cruise" / "Ride wit Me"

Rihanna - "Diamonds"

Macklemore & Ryan Lewis featuring Ray Dalton - "Can't Hold Us"

Jennifer Lopez - Tribute to Celia Cruz

A Great Big World & Christina Aguilera - "Say Something"

Kendrick Lamar - "Swimming Pools (Drank)" / "Poetic Justice"

Lady Gaga featuring R. Kelly - "Do What U Want"

Luke Bryan - "That's My Kind of Night"

TLC and Lil Mama - "Waterfalls"

Miley Cyrus - "Wrecking Ball"

Presenters:

Taylor Swift - Presented Favorite Pop/Rock Male Artist

Emma Roberts - Introduced One Direction

Marc Anthony & Zoe Saldana - Presented Favorite Soul/R&B Female Artist

Kristen Bell & Chris Daughtry - Presented Favorite Country Album

Akon & Michael Bolton - Presented Favorite Rap/Hip-Hop Album

Maia Mitchell & Naya Rivera - Introduced Pitbull and Ke$ha

Dave Grohl & Joan Jett - Presented Favorite Alternative Artist

Pitbull - Presented Favorite Latin Artist

Heidi Klum - Introduced Justin Timberlake

Kelly Osbourne & Nicole Richie - Presented Favorite Pop/Rock Album

Daisy Fuentes & Juan Pablo Galavis - Presented Kohl's New Artist of the Year

Nathan Fillion & Alicia Silverstone - Presented Soul/R&B Male Artist

Bill Maher - Introduced Rihanna

Sarah Silverman - Presented Favorite Soul/ R&B Album

Jennifer Hudson - Introduced A Great Big World and Christina Aguilera

Kendall Jenner & Austin Mahone - Presented Favorite Electronic Dance Music Artist

Jeremy Renner - Introduced Lady Gaga and R. Kelly

(Cast of Shark Tank) Kevin O’Leary, Daymond John, Robert Herjavec & Mark Cuban - Presented Favorite Pop/Rock Band/Duo/Group

2 Chainz & Jaden Smith - Introduced Miley Cyrus

Jaimie Alexander

Ciara

Fall Out Boy

Lady Antebellum

Andrew McCutchen

Hayden Panettiere

The Ceremonies

Jenna Ushkowitz