Advertisement
2015 Billboard Music Awards - Roaming Show
Credit: Getty Images North America

The 2015 Billboard Music Awards celebrated the world's top artists on Sunday in Las Vegas and the evening was packed with accolades, remarkable performances, and speeches. Read on and relive the most memorable moments of the night.

2015 Billboard Music Awards - Roaming Show
Credit: Getty Images North America

1. Co-hosts Chrissy Teigen and Ludacris play a drinking game.
The adorable duo established a fun rapport from the start of the show, when Teigen told the audience to take a drink every time she made Ludacris crack a smile. Naturally, that happened quite a few times throughout the night.

Bad Blood music video lead
Credit: Courtesy

2. Taylor Swift unleashes the "Bad Blood" music video.
After teasing the video for weeks, the singer finally debuted the music video for "Bad Blood"—and it included even more cameos than we imagined.

Billboard Awards - One Direction
Credit: Ethan Miller/Getty Images

3. One Direction thanks Zayn Malik.
During their acceptance speech for the Top Duo/Group award, the group made sure to show their appreciation for the former band member. “[There’s] one more person [to thank],” Liam Payne said, “and that’s our brother Zayn. So thank you very much!" Aww!

Billboard Awards - Britney Spears/Iggy Azalea Performance
Credit: Denise Truscello/Getty Images

4. Britney Spears and Iggy Azalea perform "Pretty Girls" live for the first time.
The pair brought their new single to life on the Billboard Music Awards stage with an effervescent performance complete with backup dancers in roller skates and retro '80s neon.

Billboard Awards - Molly Ringwald
Credit: Ethan Miller/Getty Images

5. Molly Ringwald ditches The Breakfast Club for Taylor Swift.
The actress introduced Simple Minds for a performance of "Don't You (Forget About Me)" on the 30th anniversary of the Breakfast Club song hitting the No. 1 on the Hot 100 chart. "Thirty years ago, I was part of a club that made history. But now—can I be in Taylor [Swift]'s club, please?" Ringwald joked. "Can I be in your club?"

2015 Billboard Music Awards - Roaming Show
Credit: WireImage

6. Mariah Carey brings down the house.
Despite suffering from a bout of bronchitis earlier in the week, the singer performed at the Billboard Music Awards for the first time in 17 years. She donned a glittering gown and sang her debut song, "Vision of Love," then launched into her new single, “Infinity.”

Watch a clip of her performance here: