By Jennifer Davis
Updated May 20, 2013 @ 2:00 pm
Celine Dion, Madonna, Carly Rae Jepsen, Hayden Panettiere, Selena Gomez, Taylor Swift
Credit: Kevin Mazur/WireImage; Sara Jaye Weiss/ ; Michael Simon/

The music industry's hottest artists celebrated a year in chart-topping records at Sunday night's Billboard Music Awards, held at the MGM Grand Garden Arena in Las Vegas. Legends like Celine Dion and Madonna (in Givenchy), who was honored as the Top Touring Artist, posed together backstage, while Top Digital Songs Artist winner Carly Rae Jepsen (in Dynathe) embraced Nashville star Hayden Panettiere (in Halston Heritage) as the two made their way into the venue. Meanwhile, the night's nine-time winner Taylor Swift (in Zuhair Murad) shared a moment with BFF Selena Gomez (also in Zuhair Murad) in the crowd. Click the photo above to see more photos of stars partying over the weekend!