Sam Smith and Taylor Swift
Credit: Mike Marsland/WireImage

The first five categories for the 2015 Billboard Music Awards were unveiled this morning on ABC's Good Morning America, and no surprise here---Taylor Swift and Sam Smith were the clear leaders, scoring nominations in four categories each. Other top nominees? Ariana Grande, Iggy Azalea, and Katy Perry.

Billboard revealed five of the 41 categories, including top artist, top male artist, top female artist, top Billboard 200 album, and top Hot 100 song. The rest of the categories will be announced during a press conference later today.

Tune in to the 2015 Billboard Music Awards---hosted by Ludacris and Chrissy Teigen---when they air live on Sunday, May 17, at 8 p.m. ET on ABC.

Check out the first five categories below, and check back for the rest of the finalists later today.

Top ArtistAriana GrandeOne DirectionKaty PerrySam SmithTaylor Swift

Top Male ArtistDrakePharrell WilliamsEd SheeranSam SmithJustin Timberlake

Top Female ArtistIggy AzaleaAriana GrandeKaty PerryTaylor SwiftMeghan Trainor

Top Billboard 200 AlbumMaroon 5, VPentatonix, That's Christmas to MeEd Sheeran, xSam Smith, In the Lonely HourTaylor Swift, 1989

Top Hot 100 SongIggy Azalea feat. Charli XCX, "Fancy"John Legend, "All of Me"Sam Smith, "Stay with Me"Taylor Swift, "Shake It Off"Meghan Trainor, "All About That Bass"