You already know about May the 4th and Back to the Future Day. Now there's Alien Day, scheduled to launch on April 26th. Why that particular date? According to 20th Century Fox, the "out-of-this-world global celebration of the Alien franchise" features a "24 hour, fan-focused social media event on April 26th -- a nod to LV-426, the planet from the iconic Alien films." Among the special events, the one that really caught our attention is the release of the Reebok Alien Stomper, the shoe that Ridley wore while battling deadly Xenomorphs in Aliens. Described as an "exact replica of the ALIEN High-Top Stompers worn by Sigourney Weaver as Ellen Ripley," the kicks will be available through Reebok.com on April 26th.