The "Stay" crooner joined in on Scout's support of the #FreetheNipple campaign, retweeting a post about Bruce Willis and Demi Moore's daughter going topless in New York City after her Instagram was deleted.
"@TheFashionLaw: .@Scout_Willis is Protesting Rihanna's Instagram ban and looks hot while doing it," Rihanna retweeted, adding, "FREE THE NIPPLE."
Rihanna's Instagram was deleted weeks ago after she posted topless pics from her LUI magazine cover and spread. She has yet to start another account on the site.
Then, Scout's Instagram was also deleted after Instagram deemed some of her snaps too risqué for the social networking site as well.
To protest the deletion, Scout decided to strut around NYC topless in only a skirt and flats, and post the photos on Twitter instead.
"This is about helping women feel empowered to make personal choices about their bodies not dictated by what society says is decent," Scout tweeted today.