HGTV star makes a ‘splash’ with unexpected collaboration for beauty brand HGTV star Heather Rae El Moussa tells Fox News Digital how she collaborated with her husband's ex-wife, Christina Haack, for her beauty brand Heather Rae Essentials. NEW You can now listen to Fox News articles! Christina Haack and Heather Rae El Moussa are redefining co-parenting goals one desert pool day at a time. The stars of "The Flip Off" took to social media this week to share a glimpse into their latest blended-