Simon Cowell's girl group has teamed up with officials at peta2, the youth division of the People for the Ethical Treatment of Animals, to front the new 'Be an Angel for Animals' advertisements, encouraging devotees to make small changes in their lives to ensure they don't contribute to animal cruelty.

Singer Lauren Jauregui says, "You don't need wings or a halo to be an 'angel' for animals."

Her bandmate Camila Cabello continues, "Always adopt - never buy animals from pet stores or breeders. And always spay or neuter", while Normani Kordei adds, "Never leave cats or dogs unattended outside."

Meanwhile, Ally Brooke urges everyone to, "Say no to circuses that exploit and abuse animals", and Dinah Jane Hansen encourages, "Keep cruelty out of your closet. Don't buy clothing with real fur or fur trim."

The Sledgehammer hitmakers are the latest stars to join forces with peta2 - Pink, Cody Simpson and Jhene Aiko have also previously fronted campaigns for the cause.