Award show ceremonies collect Hollywood's biggest names under one roof for a night of glitz and glamour as stars pay tribute to the very best in their industry. But not everyone in Hollywood enjoys the gala event. Almost every awards show has had very vocal celebrities who are totally unhappy with whatever's going down.

Over the years, several artists, including A-listers, have called out awards shows and even boycotted them and refused to attend for various reasons - whether personal or political. Many celebs feel artists and actors aren't being honored fairly, and some don't even want to be honored by certain awards shows at all, sidestepping the show when they were up for awards of their own.

20 Frank Ocean, The Grammys

Ocean didn't need his buddy Kanye sticking up for him. He slammed the Grammys for "putting people to sleep" and being a dated institution. A Grammys producer and writer responded to him in Rolling Stone, calling his 2013 Grammy performance "bad TV!" Ocean then took to social media and flipped their own words on them calling out Taylor Swift's "Album of the Year" win over Kendrick Lamar as "bad TV!"

19 Will Smith, The Academy Awards

Although not nominated for Concussion, Will Smith, just like his wife, vowed not to attend the 2016 Oscars in protest of a lack of diversity. Smith told Good Morning America; "We're part of this community. But at this current time, we're uncomfortable to stand there and say this is okay." This wasn't Smith's first boycott: In 1989, he boycotted the Grammys after learning the announcement for best rap performance wouldn't be televised.

18 Anohni, The Academy Awards

In 2016, Anohni, the first transgender performer ever to receive an Oscar nomination, announced she was boycotting the event because she was not invited to perform - unlike the other contenders in the Best Original Song category. Fellow nominees Sam Smith, Lady Gaga, and The Weeknd were asked to sing at the ceremony while Anohni was not asked to participate, a decision she described as “degrading.”

17 Toby Keith, The Country Music Awards

Keith has boycotted The Country Music Awards for years, eventually calling it out as "too political." With over 20 nominations within a few years, he still didn't win any awards, so he decided it just wasn't worth his time to show up to an award show that didn't want to honor him. He's also noted that he has bigger things to be proud of — like number-one albums and huge ticket sales.

16 John Gielgud, All Awards And Ceremonies

British actor John Gielgud charmed audiences as the butler Hobson in 1981's Arthur, but the actor didn't bother showing up to the ceremony to accept his award. Gielgud - who throughout his eight-decade career nabbed two Oscars, three Tonys, an Emmy, and a Grammy (among other honors) - once said of awards shows, "I really detest all the mutual congratulation baloney and the invidious comparisons which they evoke."

15 General Hospital, The Young And The Restless, The Bold And The Beautiful, Days Of Our Lives, The Daytime Emmys

All four of the major soap operas on the air — General Hospital, Days of Our Lives, The Young and the Restless, and The Bold and the Beautiful — threatened to boycott the 2018 Daytime Emmy Awards unless major changes are made, hoping to eliminate bias from the voting and change the rules. The cast and crew threatened to stay far away from the show until their demands were met.

14 Bella Thorne, Teen Choice Awards

Despite being nominated in multiple categories, Thorne boycotted the 2018 Teen Choice Awards. Her reasoning is simple: making kids pit people against each other probably messes with their head and she thinks the whole thing is rigged anyway. She also called out the actual categories, suggesting replacing "hottest" categories with "smartest" or "most charitable."

13 Justin Bieber, The Grammys

The pop star has been recognized by the academy. In fact, he has been nominated several times for a Grammy and even won. However, Bieber reportedly thinks the awards ceremony is irrelevant and doesn't represent young singers. Seeing as both he and his fans are young, that would be a valid reason for him to not bother showing up.

12 Snoop Dogg, The Grammys

Snoop is one of the many rappers to have called out The Grammys for lack of representation for rap musicians. In 2015 he said "F*** the Grammys" and called for the creation of a hip-hop awards show. In 2018, he slammed The Grammys again, noting the many nominations he's had with zero wins. He also hasn't been shy about insinuating that the people he lost these awards to haven't been as worthy.

11 David Oyelowo, The Academy Awards

After he was snubbed for his role in Selma and amidst the #OscarsSoWhite controversy, Oyelowo wasn't about to take the lack of recognition for actors of color lightly. He blasted the 2016 Oscars in a speech honoring Academy President Cheryl Boone Isaacs. Oyelowo said that the Academy has a problem and cited the lack of representation for minorities in all of the key categories.

10 Rose McGowan, The Golden Globes

At the 2018 Golden Globes ceremony, many attendees wore all black to show solidarity for the #TimesUp movement - protesting inequality for women in the workforce. But McGowan was not having any of the "Hollywood fakery." She claims she wasn't invited, nor was she asked to sign the big #TimesUp letter that was circulating, despite her being one of the first vocal celebs in the movement against sexual harassment in Hollywood.

9 Marlon Brando, The Academy Awards

Brando lashed out at the awards show during the ceremony! When he won the 1973 Oscar for "Best Actor" in The Godfather, he didn't accept the award — or even show up himself to decline it. He had Native American actress Sacheen Littlefeather attend the ceremony in his place and tell the audience that he was turning down the award because of Native American treatment in movies.

8 50 Cent, The Grammys

50 Cent called out the Grammys in 2009. He said in an interview that the show was basically the Beyoncé and Taylor Swift show, and the fact that they're performing and spending money on the show basically guarantees them trophies. At the time of the interview, he had not yet won a single Grammy despite more than a dozen nominations.

7 G-Eazy, The Grammys/Awards Shows In General

After the 2018 Grammys basically failed to recognize female stars at their 2018 ceremony, and then said it was their responsibility to "step up" in a statement afterward, G-Eazy was fed up! He vowed to boycott The Grammys and other award shows until equality for women is seen in the ceremonies. He said that a "boycott could actually happen, you know, if everyone jumped on board!"

6 Spike Lee, The Academy Awards

Lee refused to go to the 2016 Oscars due to the lack of diversity in the acting awards. In 2015 and 2016, every major acting category was full of only white nominees. He slammed the "40 white actors in two years and no Flava at all" in an Instagram post. Until minorities are getting roles and making content, the Oscars will remain white-washed, according to Lee.

5 Drake, The Grammys

Drake didn't submit his 2017 album, "More Life," for consideration at the 2018 Grammys and showed how he really feels about the people in charge. After his 2017 Grammy wins, he told a publication that he won two Grammys that he didn't even want! He wasn't happy that the awards show was pigeonholing him as a "rapper" when he thought he didn't truly fall into that category.

4 Jada Pinkett Smith, The Academy Awards

In 2016, #OscarsSoWhite was at its peak and Smith was one of the many people who chose not to attend the ceremony in protest. She said that people of color shouldn't have to be begging for acknowledgment, as that "diminishes dignity and diminishes power." Smith was one of the most vocal critics against the show. In 2017, when nominations were more diverse, she expressed her happiness for the change.

3 Halsey, The VMAs

Halsey didn't attend the 2018 VMAs and when asked about it on Twitter, she went off since the awards show failed to nominate her for a single award. This was a particularly big blow to the singer since she directed all of her own music videos from her most recent album. So she sat out the VMAs, instead opting to go to the after-parties to support her musician friends.

2 Woody Allen, The Academy Awards

Allen has never shown up on the night of any of his own nominations. He made one appearance on the Oscar stage in 2002, several months after the September 11 attacks, to introduce some films that had been made in New York. He has no regard for the Oscars and calls the award meaningless, saying he doesn't think they know what they’re doing.

1 Kanye West, The Grammys

West has never been shy about his disdain for award shows. Who doesn't remember the Taylor Swift VMAs incident? West's buddy, Frank Ocean, was deemed ineligible for the 2017 Grammys because of a submission deadline. At a concert, Kanye called out the double standard referring to Lady Gaga's 2010 nomination for "Best New Artist," which was the result of revised rules and, he alleges, so that she would perform at the show.

Sources: Cheatsheet, Billboard, Today