The New F Word Campaign launched on June 4 and features various celebs, including LeAnn and Lisa, giving the middle finger.
Also involved in the admirable cause are such famous (and adorable) faces as Glee's Darren Criss, American Idol alum Adam Lambert, and Pretty Little Liars Season 4 guest star Rumer Willis.
So how did LeAnn get involved?
"LeAnn's a great friend of mine, and I've seen over the years how she's been bullied in the press, so I asked her right away to be a part of Friend Movement's anti-bullying campaign," an exec of the campaign explains to E! News.
It turns out that LeAnn was so ill during the photo shoot that she couldn't even keep her middle finger up under her own power.
"She had a hard time keeping her middle finger up, so our photographer Ryan Forbes had to tape her other fingers down with black tape," the exec adds.