By Jennifer Davis
Updated Oct 15, 2015 @ 2:30 pm
Spirit Day -Caitlyn Jenner
Credit: caitlynjenner/instagram

Celebrities are taking a stand against bullying for GLAAD's #SpiritDay.

For those unsure what #SpiritDay is, it's a social media movement that aims to support LGBT youth across the nation by asking participants to wear purple. First started in 2010 as a way to remember teenagers who committed suicide due to bullying, it has grown exponentially. Thousands of people have taken to social media platforms to show their support by pledging to go purple; and even celebrities have gotten involved, Tweeting and Instagramming about the cause to their followers.

From Catilyn Jenner, who showed off her purple nail polish, to Ellen DeGeneres and Laverne Cox, see who has joined the movement so far.

Debra Messing:

#SPIRITDAY Show that YOU are AGAINST BULLYING! Wear some purple today and share your message! RT

Matt Bomer:

Go purple for #SpiritDay! Join me to stand up against bullying and support #LGBTQYouth with @glaad

Ellle DeGeneres:

Be kind to one another #SpiritDay

Caitlyn Jenner:

A photo posted by Caitlyn Jenner (@caitlynjenner) on Oct 15, 2015 at 8:34am PDT

Naomi Campbell:

It's #SpiritDay! Take a stand against bullying and show your support for #LGBT youth:

Ellen Page:

A photo posted by @ellenpage on Oct 15, 2015 at 9:46am PDT

Lucy Hale:

Go purple for #SpiritDay with me and @glaad to show LGBT youth that we've got their back !!

Kerry Washington:

It's #SpiritDay! Go purple and take a stand against bullying to show your support for #LGBT youth:

Laverne Cox:

A photo posted by laverne cox (@lavernecox) on Oct 14, 2015 at 7:57pm PDT