Five American Music Awards Highlights, from Selena Gomez's Moving Speech to Prince's Sister

There was plenty of emotion onstage at the American Music Awards on Sunday night as Prince's sister Tyka Nelson paid a moving tribute to the late singer, Selena Gomez surprised viewers with a heartfelt speech about her battle with depression, and Green Day led an anti-Donald Trump chant.

Pop star Ariana Grande pulled off a shock victory to claim the night's top prize, Artist of the Year, beating the likes of Adele, Beyoncé, Drake and Justin Bieber.

But Bieber, who performed his hit DJ Snake collaboration "Let Me Love You," walked away with numerous awards including Favorite Pop/Rock Album for Purpose, Favorite Male Artist and Favorite Pop/Rock Song for "Love Yourself."

Here are some of the highlights from the ceremony.

Selena Gomez gets personal

The "Good For You" singer, who recently took a break from music to deal with anxiety, stirred the likes of Lady Gaga and Fifth Harmony's Camila Cabello with a raw acceptance speech for Favorite Female Artist.

Gomez spoke about her battle with depression and anxiety, telling viewers: "I had to stop. I had everything and I was absolutely broken inside."

She added, "If you are broken, you do not have to stay broken. If you respect me or not, that's one thing you should know about me. I care about people."

Green Day lead Trump protest

"No KKK, no fascist U.S.A., no Trump," chanted Billie Armstrong, the frontman of Green Day, during the rock band's performance of latest single "Bang Bang."

Green Day weren't the only ones to take aim at the new president-elect…

Idina Menzel shows Hamilton solidarity

Over the weekend, an unlikely spat emerged between Donald Trump and the cast of hit Broadway musical Hamilton. The show's stars, led by Brandon Victor Dixon, issued a message of tolerance to Vice President-elect Mike Pence, who attended Friday's performance, in which he voiced the cast's concerns that Trump would "not protect them," which was followed by boos from the audience directed at Pence. Footage of the incident went viral, after which Trump accused the cast of harassing Pence and demanded an apology on Twitter.

Presenting an award at Sunday's event, Broadway veteran Idina Menzel gave a shoutout to the Hamilton cast, alluding to Trump's tweet that the theater "must always be a safe and special place."

"Us unsafe, scary theater people wouldn't be invited to the inauguration, either. I love you, Hamilton," Menzel said in response to co-presenter Mark Cuban—who has had his own feud with Trump—joking that he wouldn't be invited to the billionaire's inauguration in January.

A tribute to Prince

More than 30 years after it was first released, Prince's Purple Rain album was a surprising addition to this year's AMA nominations in the Top Soundtrack category (it was eligible because it re-entered the Billboard album chart following his death in April). It beat the soundtracks to Suicide Squad and Star Wars: The Force Awakens to scoop the prize.

Accepting on the late singer's behalf, Prince's sister Tyka Nelson—who is executor of his estate—gave a moving speech about her brother. "Prince defied the odds. A black teen from Minneapolis with a goal to electrify the world. He had the courage to be different with his vision and God-given talent. He's still one of the world's most respected and loved artists," she said.

Ariana Grande rocks "Side to Side"

The AMAs line-up included performances from Lady Gaga, The Weeknd, Maroon 5 and John Legend, but arguably the night's best performance came from the pint-sized warbler with a huge voice.

Grande and Nicki Minaj had the crowd on their feet for their energetic performance of hit song "Side to Side."