Attorney General Eric Holder is teaming up with Justin Bieber's manager, Scooter Braun, along with Henry Winkler and a slew of other celebrities to speak out against bullying.

AP

Credit: Jennifer Brett

icon to expand image

Credit: Jennifer Brett

Justin Bieber's manager, Scooter Braun, is part of the anti-bullying campagin. Photo credit: Jemal Countess/Getty Images

Credit: Jennifer Brett

icon to expand image

Credit: Jennifer Brett

Weather Channel anchor Sam Champion, who will headline an upcoming event on climate change in Atlanta; CNN's Anderson Cooper, HLN's Robin Meade, CNN New Day's  Michaela Pereira and NBA stars-turned-commentators Grant Hill, Reggie Miller and Rick Fox are among the other notables participating.

The Cartoon Network will be airing anti-bullying video messages from the famous names.

Here is Holder's message:

http://youtu.be/NMH5Abirdaw

The network invites you to join in, too.