2018 Teen Choice Awards: Bebe Rexha, Evvie McKinney added as performers; Zac Efron, Louis Tomlinson are presenters
Bebe Rexha/YouTube

The 2018 Teen Choice Awards, which take place Aug. 12 at The Forum in Los Angeles, has announced more performers and presenters. Nick Cannon is hosting the show, which will be televised on Fox at 8 p.m. ET/PT.

Bebe Rexha will perform "I'm a Mess," while "The Four: Battle for Stardom" first-season winner Evvie McKinney will perform her first single "How Do You Feel." Previously announced performers for the show are Khalid, Meghan Trainor and Lauv. Khalid will perform a medley of songs, Trainor will sing "Let You Be Right" and Lauv will do "I Like Me Better."

In addition, these celebrities have been announced to be presenters at the show: Zac Efron, Louis Tomlinson, Lil Rel Howery, Jessica "Jess Hilarious" Moore, Oliver Stark, Ryan Guzman, CNCO, Bryce Dallas Howard, Grant Gustin, Normani, Troye Sivan, On My Block, Sierra Capri, Jason Genao, Brett Gray and Diego Tinoco.

Also set to appear are "Riverdale" stars Cole Sprouse, Lili Reinhart, Vanessa Morgan, Madelaine Petsch and Mark Consuelos, as well as "Love, Simon" stars Nick Robinson, Alexandra Shipp, Jorge Lendeborg Jr., Keiynan Lonsdale and Katherine Langford. 

They join previously announced presenters Chris Pratt, Olivia Holt, Lauren Jauregui, Anna Kendrick, Lucy Hale, Hudson Yang, Maddie Ziegler, Nina Dobrev, Chloe Grace Moretz, Noah Cyrus, Red Gerard, Chloe Kim, Auli’i Cravalho and Jojo Siwa.

Several of the performers and presenters have nominations for the Teen Choice Awards this year.

Efron's role in the movie musical "The Greatest Showman" earned him nominations for Choice Drama Movie Actor and Choice Collaboration, for his "Rewrite the Stars" duet with "The Greatest Showman" co-star Zendaya. Efron and Zendaya, who have a romance in the movie, are also nominated for Choice Movie Ship and Choice Liplock, while Efron is among the nominees for Choice Male Hottie.

"Jurassic World: Fallen Kingdom" is up for Choice Summer Movie, while co-stars Pratt and Howard are nominated for, respectively, Choice Summer Movie Actor and Choice Summer Movie Actress. Meanwhile, Pratt is also nominated for Choice Liplock with his "Avengers: Infinity War" co-star Zoe Saldana.

"Pitch Perfect 3" co-star Kendrick is nominated for Choice Comedy Movie Actress and Choice Twitter Personality.

"Love, Simon" is nominated for Choice Comedy Movie, while "Love, Simon" co-stars Robinson and Lonsdale are nominated for Choice Movie Ship, and Robinson is up for Choice Breakout Movie Star.

Fifth Harmony, whose members include Jauregui and Normani, went on hiatus in 2018, but the group is nominated for Choice Music Group and Choice Fandom. Meanwhile, Jauregui is nominated for Choice Electronic/Dance Song (for her "All Night" single with Steve Aoki) and Choice Female Hottie. Khalid and Normani's duet "Love Lies" is nominated for Choice R&B/Hip-Hop Song. Meanwhile, Khalid and Lauv are among the nominees for Choice Breakout Artist.

Tomlinson is one of the nominees for Choice Male Artist. CNCO is a nominee for Choice Latin Artist, Choice International Artist, Choice Fandom and Choice Latin Song for "Hey DJ" with Yandel.

“The Four: Battle for Stardom” judge Trainor is nominated for Choice TV Personality, Choice Summer Female Artist and Choice Snapchatter, while her "No Excuses" single is nominated for Choice Pop Song. In addition, "The Four: Battle for Stardom" is nominated for Choice Reality TV Show.

Rexha and Florida Georgia Line's smash hit single "Meant to Be" is nominated for Choice Collaboration and Choice Country Song.

"Riverdale," a previous Teen Choice winner, is nominated for several Teen Choice Awards again this year, including Choice Drama TV Show. "Riverdale's" Sprouse and K.J. Apa are among the nominees for Choice Drama TV Actor; Reinhart and Camila Mendes are nominated for Choice Drama TV Actress; Petsch is up for Choice Hissy Fit; Morgan is nominated for Choice Scene Stealer; Sprouse is up for Choice Male Hottie; and Consuelos is among the nominees for Choice TV Villain. Meanwhile, "Riverdale" couples Sprouse and Reinhart and Apa and Mendes are among the nominees for Choice TV Ship, while Sprouse and Reinhart are nominated for Choice Liplock. 

"The Flash" star Gustin is nominated for Choice Action TV Actor and Choice Male Hottie, while Gustin and his "Flash" co-star Candice Patton received a nomination for Choice TV Ship. Meanwhile, "The Flash" is nominated for Choice Action TV Show.

“Marvel's Cloak & Dagger” is nominated for Choice Summer TV Show, while cast member Holt is up for Choice Summer TV Star and Choice Female Hottie. "Truth or Dare" star Hale is nominated for Choice Drama Movie Actress and Choice Instagrammer.

Olympic snowboarders Gerard and Kim are nominated for Choice Male Athlete and Choice Female Athlete, respectively.

As previously reported, the leading music nominees are Cardi B, Taylor Swift, DrakeSelena Gomez and Ed Sheeran.