Greenpeace is teaming up with the world’s most popular cats, viral Internet stars, to support the big cats, tigers. There’re only 3,000 tigers left in the wild, so the world must do something to protect them. The “Cats Save Tigers” team collaborated with the world’s favourite felines Lil Bub, Princess Monster Truck, Nala Cat and Hamilton the Hipster Cat on the video that raises awareness about the cause in a primitive and old-school but very cute way.

The video stars the popular cats in various poses, near tigers, wearing the “tiger suit,” mewing the messages of support. In the end, there’s the classic Metro-Goldwyn-Mayer frame with the roaring feline—a cat, not the lion.

The “Cats Save Tigers” effort can be joined by any cat-owner. All they need to join the movement is to create their own meme and upload it on a dedicated micro-site using the hashtag #CatsSaveTigers. The campaign is targeted at younger audience and social media platform users who love to post and share kitties.

“Reaching new audiences means more experimentation, taking some risks and maybe doing something that will be a little cringe-worthy or seem a bit ‘fluffy’ for some of our more seasoned and serious campaigners. Many of our digital staff are really excited about this campaign, not least because they have a legitimate reason to look at cats online,” commented Tracy Frauzel, mobilisation strategy director at Greenpeace. “I think the rest will grow to love this as much as audiences all over the world love these famous cats. Especially if it means we can protect more tigers on the ground.”