Las Vegas sizzled as the Billboard Music Awards 2016 have taken over. The stars walked not a red carpet, but a pink carpet heading into the new T-Mobile Arena that will house the main event hosted by Ludacris and Ciara. Showing off their outfits were the girls of Fifth Harmony, Demi Lovato, Shawn Mendes, Meghan Trainor, Britney Spears and many more. Scroll-through our photo gallery above with the best and worst fashion moments of the night!

The biggest musical acts have been confirmed to perform during the Billboard Music Awards 2016. Britney Spears will open the gala with a musical medley of all her top hits and a tribute honoring the legacy of Prince by Madonna and Kesha. Other artists confirmed to take over the stage and create magic are Justin Bieber, Celine Dion, DNCE, The Go-Go’s, Ariana Grande, Shawn Mendes, Pink, Tove Lo and Rihanna. Collaborations of the night will have Fifth Harmony teaming up with Ty Dolla $ign, Nick Jonas with Demi Lovato and Blake Shelton with Gwen Stefani.

Confirmed to present at the Billboard Music Awards 2016 are Jessica Alba, Kristen Jessica Alba, Kristen Bell, 2016 Miss America Betty Cantrell, Lauren Cohan, Kathryn Hahn, Wiz Khalifa, Mila Kunis, Ashton Kutcher, Idina Menzel, Keke Palmer, Rebecca Romijn, Serayah, Steven Tyler, Lindsey Vonn and Pete Wentz.

The top artist nominated at this year's Billboard Music Awards 2016 is The Weeknd with a total of 19 nods across 16 categories. Coming up in second place is Justin Bieber with 12 mentions, followed by Drake and Fetty Wap with 11 and Taylor Swift and Adele with eight.

Top awards of the night are Top Artist, Top Billboard 200 Album and Top Hot 100 Song. Check out all the nominated artists here and tell us who you are rooting for on the comment section below!