Tori Kelly
Singer Tori Kelly attends the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.Getty Images

Stars are starting to arrive at the 2015 Billboard Music Awards being held at the MGM Grand Garden Arena in Las Vegas on 17 May.

From Nick Jones to Jesse McCartney, here's a look at how the stars prepped up for music's big night.

The seating plan for the night was also leaked on Twitter.

Rumours are rife that Justin Bieber is set to make a surprise entry, triggered by his manager Scooter Braun's tweets.

Returning host and rapper Ludacris took to Twitter to call on his fans while model Christine Teigen who is hosting the show with Ludacris expressed her jitters.

Here's a look at some of the early arrivers from the evening.

Giuliana Rancic
TV personality Giuliana Rancic attends the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.Getty Images
Bonnie McKee
Singer-songwriter Bonnie McKee.Getty Images
Jesse McCartney
Singer Jesse McCartney (L) and actress Katie Peterson.Getty Images

Nominations for the Billboard Music Awards

Taylor Swift is leading the finalists with 14 nominations followed by Sam Smith at 13, Iggy Azalea at 12 and Meghan Trainor at nine.

Here are some of the categories from the final nominations:

Top Artist

Ariana Grande

One Direction

Katy Perry

Sam Smith

Taylor Swift

Top New Artist

5 Seconds of Summer

Iggy Azalea

Hozier

Sam Smith

Meghan Trainor

Top Male Artist

Drake

Pharrell Williams

Ed Sheeran

Sam Smith

Justin Timberlake

Top Female Artist

Iggy Azalea

Ariana Grande

Katy Perry

Taylor Swift

Meghan Trainor

Top Duo/Group

5 Seconds of Summer

Florida Georgia Line

MAGIC!

Maroon 5

One Direction

Top Billboard 200 Artist

One Direction

Pentatonix

Ed Sheeran

Sam Smith

Taylor Swift

Top Hot 100 Artist

Iggy Azalea

Ariana Grande

Sam Smith

Taylor Swift

Meghan Trainor

Top Social Artist

Justin Bieber

Miley Cyrus

Selena Gomez

Ariana Grande

Taylor Swift

Top R&B Artist

Beyoncé

Chris Brown

John Legend

Trey Songz

Pharrell Williams

Top Rap Artist

Iggy Azalea

J. Cole

Drake

Nicki Minaj

Rae Sremmurd

Top Billboard 200 Album

Maroon 5, V

Pentatonix, That's Christmas to Me

Ed Sheeran, x

Sam Smith, In the Lonely Hour

Taylor Swift, 1989

Top Soundtrack

The Fault in Our Stars

Fifty Shades of Grey

Frozen

Guardians of the Galaxy: Awesome Mix: Vol. 1

Into the Woods

#bbmas

A photo posted by @ludacris on