Although each of them approached beauty their own way, makeup heroes Desi Perkins and Katy DeGroot, aka Lustrelux, both ended up as super-popular YouTubers, finding even more popularity in their collaborations. With 2.2M+ and 1.6M+ subscribers, respectively, both of these makeup mavens are great on their own, but they’re stronger together. These besties are rarely seen apart, whether they're hosting a Q&A on Snapchat, vlogging their day, stewing on the couch in their cozy clothes or hitting the red carpet to slay, they're together.