Photos: Billboard Music Awards 2014 | Show highlights

Singer-actress Jennifer Lopez  (Ethan Miller / Getty Images)

Singer Kelly Rowland, left, and news personality Shaneen Quarles are onstage as presenters.  (Ethan Miller / Getty Images)

Singer Jason Derulo and rapper 2 Chainz  (Ethan Miller / Getty Images)

Singer Jason Derulo  (Ethan Miller / Getty Images)

Robin Thicke takes the stage, singing a song about “getting his woman back,” following publicized news about a split between him and wife Paula Patton.  (Chris Pizzello / Invision / Associated Press)

Miranda Lambert, left, and Carrie Underwood perform in one of the night’s anticipated duets.  (Ethan Miller / Getty Images)

Lorde performs “Tennis Court.”   (Ethan Miller / Getty Images)

Lorde accepts the award for top new artist.  (Chris Pizzello / Invision / Associated Press)

Luke Bryan croons.  (Ethan Miller / Getty Images)

Actress Lucy Hale and recording artist Jack Antonoff of music group Fun speak onstage.  (Ethan Miller / Getty Images)

Wayne Sermon, left, and Dan Reynolds of Imagine Dragons plays amid confetti and more.  (Chris Pizzello / Invision / Associated Press)

Robin Thicke accepts the Top R&B Song award for “Blurred Lines.”  (Ethan Miller / Getty Images)

Ricky Martin is framed by break-dancing backup dancers.  (Ethan Miller / Getty Images)

Ricky Martin performs a World Cup-themed song.  (Ethan Miller / Getty Images)

Shakira gets closer to the crowd.  (Ethan Miller / Getty Images)

Shakira is in the center of the spotlights.  (Ethan Miller / Getty Images)

Josh Groban presents the top female artist award, which went to a touring Katy Perry.  (Ethan Miller / Getty Images)

Ryan Tedder of OneRepublic hits an emotional note.  (Ethan Miller / Getty Images)

Iggy Azalea, left, and Ariana Grande dance together after their individual performances.  (Ethan Miller / Getty Images)

After Iggy Azalea performed, Ariana Grande took the stage with her own charismatic dancers.  (Ethan Miller / Getty Images)

Charli XCX and Iggy Azalea perform with cheerleader-esque flair and backup dancers.  (Ethan Miller / Getty Images)

Shania Twain presents an award.  (Ethan Miller / Getty Images)

Dan Reynolds, left, Ben McKee, Daniel Platzman and Wayne “Wing” Sermon of Imagine Dragons accept the Top Rock Album award for “Night Visions.”  (Ethan Miller / Getty Images)

Shania Twain presents Dan Reynolds of Imagine Dragons the Top Rock Album award for “Night Visions.”  (Ethan Miller / Getty Images)

Recording artists Jennifer Lopez, left, Pitbull and Claudia Leitte perform onstage as the opening act for the 2014 Billboard Music Awards at the MGM Grand Garden Arena.  (Ethan Miller / Getty Images)