Jason Derulo was on hand to help announce the nominees in the top categories of this years' Billboard Music Awards on ABC's Good Morning America. Currently Justin Timberlake leads the field of nominees with three nominations including Top Male Artist, Top R&B Artist and Top Artist. However, this early lead could be short lived because the bulk of the nominations will be announced later this afternoon.

The Billboard Music Awards will air live on ABC on Sunday, May 18th from Las Vegas. The awards show highlights the most successful artists from all genres of music and are based on sales, airplay, touring, streaming and social media presence.

The following categories and nominations have been announced so far:

Top Female Artist

Beyonce
Miley Cyrus
Lorde
Katy Perry
Rihanna

Top Male Artist

Luke Bryan
Drake
Eminem
Bruno Mars
Justin Timberlake

Top Country Artist

Luke Bryan
Florida Georgia Line
Darius Rucker
Blake Shelton
Taylor Swift

Top R&B Artist

Beyonce
Pharrell Williams
Rihanna
Robin Thicke
Justin Timberlake

Top Artist

Miley Cyrus
Imagine Dragons
Bruno Mars
Katy Perry
Justin Timberlake