Justin Bieber and Selena Gomez are among the stars set to be presenters at the 2013 Radio Disney Music Awards on April 27.

The former couple will reunite somewhat for the awards show that will take place at Los Angeles Live's Nokia Theatre, Radio Disney announced Monday.

Other presenters include Ryan Seacrest, Demi Lovato, Denise Richards, Jason Derulo, Jessica Sanchez, Nascar 500 champion Trevor Bayne, Zendaya, Bella Thorne, Austin Mahone, Debby Ryan, Ariana Grande, Tatyana Ali,Laura Marano, Ross Lynch, Maia Mitchell, China Anne McClain, Olivia Holt, Jeff Corwin.

Gomez, Cher Lloyd, Bridgit Mendler and Cody Simpson are among the confirmed performers at the awards show. The Radio Disney Music Awards honors popular recording artists among kids and tweens voted by the public online.

News of Gomez presenting on April 27 follows the announcement of her first solo world tour. Her Stars Dance World Tour will kick off in North American on Oct. 10 and will run through Nov. 20. Tickets go on sale April 20, with The Scene pre-sales starting on April 17. Full a full list of tour dates, click here.

Gomez's album is set to be released this summer. She performed her new single Come & Get It at the 2013 MTV Movie Awards on Sunday and will perform the song again on Tuesday at the Dancing with the Stars results show. Bieber is currently on his Believe world tour.

Bieber and Gomez are both nominated in the So FANtastic category at the Radio Disney Music Awards, an award given to the star with the most loyal fan base. In terms of the two pop singers, it will be their Beliebers and Selenators going head-to-head. Others nominated in the respective category include fans of One Direction (Directioners) Austin Mahone (Mahomies) and Cody Simpson (Simpsonizers).

Here are all the nominees:

They’re The One – Best Music Group:
One Direction
The Wanted
Mindless Behavior
R5

The Bestest – Song Of The Year:
“I Knew You Were Trouble” – Taylor Swift
“Beauty And A Beat feat. Nicki Minaj” – Justin Bieber
“Live While We’re Young” – One Direction
“Want U Back” – Cher Lloyd

Ultimate Breakout Star – Biggest Viral Artist:
Austin Mahone
Ryan Beatty
Cimorelli
IM5
Christina Grimmie

He’s The One – Best Male Artist:
Justin Bieber
Cody Simpson
Austin Mahone
Bruno Mars

She’s The One – Best Female Artist:
Selena Gomez
Cher Lloyd
Taylor Swift
Bridgit Mendler

Hit The Road – Best Break Up Song:
“We Are Never Ever Getting Back Together” – Taylor Swift
“Payphone” – Maroon 5
“Wide Awake” – Katy Perry
“Want U Back” – Cher Lloyd

XOXO – Best Crush Song:
“Wish You Were Here” feat. Becky G – Cody Simpson
“Say You’re Just A Friend” – Austin Mahone
“Had Me @ Hello” – Olivia Holt
“Heart Skips A Beat” – Olly Murs

Radio Disney Live – Best Acoustic Performance:
“Ready Or Not” – Bridgit Mendler
“Say Somethin’” – Austin Mahone
“Loud” – R5
“Heart Skips A Beat” – Olly Murs

Funniest Celebrity Take:
How To Audition – Cher Lloyd
Air Guitar – Ross Lynch
Sandwich Rap – Coco Jones

Video VIP – Best Music Video:
Fashion Is My Kryptonite – Bella Thorne & Zendaya
Heart It On The Radio – Ross Lynch
Ready Or Not – Bridgit Mendler
Holla At The DJ – Coco Jones

So FANTastic – Fiercest Fans:
Beliebers
Mahomies
Selenators
Simpsonizers
Directioners

Tags: Justin Bieber Selena Gomez