Posted 1 hour agoHere's How Celebrities Are Reacting To Gwen Stefani Promoting An Anti-Abortion App"this IS bananas."by Chelsea StewartBuzzFeed StaffFacebookPinterestLink Gwen Stefani is facing backlash for her latest advertisement. Gabe Ginsberg / Getty Images Recently, the singer appeared in a promotional ad for Hallow, a Catholic prayer and meditation app backed by JD Vance and billionaire Trump supporter Peter Thiel that has also featured anti-abortion messaging. In the ad, released on Dec.