Today is GLAAD’s annual Spirit Day and celebrities have taken the pledge to help fight LGBT bullying.

Spirit Day is marked by schools as a day to stand up to LGBT bullying and several celebrities have pledged their support in videos, tweets or by wearing purple.

Will & Grace stars Debra Messing and Megan Mullally pledged their support in a video tweet.

In it, Mullally says: “No one should be bullied or called names simply for being who they are,” before urging followers to “Wear purple, and post to social media with hashtag “Spirit Day’ and hashtag ‘PrideNBCU’.

Other celebrities who support GLAAD’s annual day include Star Trek: Discovery’s Wilson Cruz, Celine Dion, Adam Lambert, Courtney Love, Lily Tomlin, Nico Tortorella and Orphan Black’s Tatiana Maslany.

Other celebrities confirmed to participate in the day include Britney Spears, Halsey, Christina Aguilera, Celine Dion, Mario Lopez, Olivia Newton John and Fergie.

Kellogg’s mascots support the event too as Tony the Tiger, Snap, Crackle and Pop as well as Toucan Sam all appeared in a video speaking out against bullying.

In it, the mascots stand silently holding Love Actually style signs urging people to support the campaign.

Spirit Day began in 2010 after a high school student came up with the idea of wearing purple in support of LGBT youth following the suicide of several LGBT young people.

Over the last several years, Spirit Day has garnered support from celebrities such as Ellen DeGeneres, Caitlyn Jenner and Laverne Cox, who lit up the Empire State Building in purple in 2014 to show her support.

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