Taylor Swift and One Direction are the leading musical nominees for the 2013 Kids' Choice Awards. In fact, Swift and her latest ex, 1D's Harry Styles, are both nominated in the same category. This award ceremony could get awkward!

For Favorite Song, One Direction's 'What Makes You Beautiful' is up against Swift's 'We Are Never Ever Getting Back Together,' the song she performed at the Grammys when she threw in an apparent Styles diss. Also nominated are Carly Rae Jepsen's 'Call Me Maybe' and Psy's 'Gangnam Style.'

1D are also the leading contenders for Favorite Musical Group. Swift has two nods in the music categories and another for Favorite Voice from an Animated Movie for her role in 'The Lorax.' She competes against movie stars Chris Rock, Ben Stiller and Adam Sandler for that one.

Elsewhere, Justin Bieber scored a nom for Favorite Male Singer, while Adele and Katy Perry lead the Favorite Female Singer contenders. 'American Idol' and 'The Voice' are shortlisted for Favorite Reality Show. And the Favorite Villain category, which normally features movie villains, includes 'X Factor' judge Simon Cowell.

Check out the nominees in key categories below. The Kids' Choice Awards air on Nickelodeon on March 23.

2013 Kids' Choice Awards Nominations:

Favorite Music Group
Big Time Rush
Bon Jovi
Maroon 5
One Direction

Favorite Male Singer
Justin Bieber
Bruno Mars
Blake Shelton

Favorite Female Singer
Katy Perry
Taylor Swift

Favorite Song
'Call Me Maybe' (Carly Rae Jepsen)
'Gangnam Style' (Psy)
'We Are Never Ever Getting Back Together' (Taylor Swift)
'What Makes You Beautiful' (One Direction)

Favorite Villain
Reed Alexander ('iCarly')
Simon Cowell ('The X Factor')
Tom Hiddleston ('The Avengers')
Julia Roberts ('Mirror Mirror')

Favorite Reality Show
'America's Got Talent'
'American Idol'
'The Voice'

Favorite Voice from an Animated Movie
Chris Rock ('Madagascar 3: Europe's Most Wanted')
Adam Sandler ('Hotel Transylvania')
Ben Stiller ('Madagascar 3: Europe's Most Wanted')
Taylor Swift ('The Lorax')

Watch the Taylor Swift, 'We Are Never Ever Getting Back Together' Video