2013 Billboard Music Awards | Entertainment News, Photos, and Videos

Hayden Panettiere hits the red carpet at the after party following the 2013 Billboard Music Awards on Sunday (May 19) at Marquee Nightclub in Las Vegas.

The 23-year-old Nashville actress was joined at the event by Jason Derulo and the hot girl group Icona Pop.

PHOTOS: Check out the latest pics of Hayden Panettiere

Also pictured: Bruno Mars hosting a party at the Bank Nightclub that evening as well following the awards show.

In case you missed it, watch the video of Bruno performing his song “Treasure” during the show last night.

FYI: Hayden is wearing a Whetherly striped top.

Seems like Taylor Swift wasn’t too impressed with her BFF Selena Gomez giving her on-and-off boyfriend Justin Bieber a kiss backstage at the 2013 Billboard Music Awards held at the MGM Grand Garden Arena on Sunday (May 19) in Las Vegas.

The 23-year-old entertainer was seen sticking out her tongue when she glanced over at the pair kindly giving each other a kiss on the cheek. Watch the GIF below!

During the show that evening, all three of the young performers hit the stage to sing their recent songs.

Taylor Swift Sticks Out Tongue for Selena Gomez & Justin Bieber’s Kiss

Jason Derulo shows off his buff arms while walking the blue carpet in a tank top at the 2013 Billboard Music Awards held at the MGM Grand Garden Arena on Sunday (May 19) in Las Vegas.

The 23-year-old “Other Side” singer hit the stage during the night to present the award for Top Billboard 200 Album of the Year alongside Emmy Rossum.

Kelly Rowland showed off some leg while walking the carpet that night. She presented the award for Dance Artist of the Year alongside Austin Mahone.

FYI: Kelly is wearing a Rami Al Ali dress.

15+ pictures inside of Jason Derulo and Kelly Rowland at the show… More Here! »

Prince takes to the stage for a highly anticipated performance at the 2013 Billboard Music Awards held at the MGM Grand Garden Arena on Sunday (May 19) in Las Vegas.

The 54-year-old singer took home the Icon Award during the evening and celebrated his honor with a performance medley of his song “Let’s Go Crazy” and “FixUrLifeUp”.

In case you missed it, check out a complete list of the winners from the awards show.

WHAT DID YOU THINK of Prince’s performance at the Billboard Music Awards?

15+ pictures inside of Prince performing at the 2013 Billboard Music Awards… More Here! »

Chloe Moretz hits the blue carpet in style for the 2013 Billboard Music Awards held at the MGM Grand Garden Arena on Sunday (May 19) in Las Vegas.

The 16-year-old starlet presented an award on stage that evening to the packed and screaming crowd of music fans!

PHOTOS: Check out the latest pics of Chloe Moretz

“Las Vegassss!! #BillBoardMusicAwards @TrevorDMoretz #mama @frangerdanger @colinuggets whooooop” Chloe tweeted the day before about her and her crew heading to the big show.

FYI: Chloe is wearing a Fendi dress and Fendi shoes.

Celine Dion poses backstage in the press room at the 2013 Billboard Music Awards held at the MGM Grand Garden Arena on Sunday (May 19) in Las Vegas.

The 45-year-old singer took to the stage during the evening to present the award for Top Artist of the Year to Taylor Swift.

PHOTOS: Check out the latest pics of Celine Dion

Celine will be performing her Las Vegas concert at Caesar’s Palace all throughout the month of June so make sure to get your tickets before they sell out! More Here! »

Taylor Swift and Madonna juggle their multiple award statues in the press room at the 2013 Billboard Music Awards held at the MGM Grand Garden Arena on Sunday (May 19) in Las Vegas.

The 23-year-old country star won the Billboard Artist of the Year award, along with the Billboard 200 Album of the Year award, Female Artist of the Year, Top Digital Artist, Top Billboard 200 Artist, along with every country award – congrats Taylor!

Madonna, 54, took home three awards for Top Dance Album, Top Touring Artist, and Top Dance Artist that evening as well.

In case you missed it, check out the complete list of winners at the award show!

15+ pictures inside of Taylor Swift and Madonna posing with their awards… More Here! »