It seems Rihanna isn’t going to let one leaky blockbuster sink her fledgling acting career. Today comes word that the pop singer will join with Jim Parsons (The Big Bang Theory) to star in DreamWorks Animation’s Happy Smekday!. It’s an adaptation of Adam Rex’s children book The True Meaning of Smekday, which finds a group of aliens invading earth on Christmas Eve (renaming the holiday “Smekday”) after being booted from their own planet by a villainous race called the Gorg. The story takes the form of an essay written by main character Tip, an 11-year-old human who travels cross-country with the alien that inadvertently put Earth on the Gorg’s radar. It will be helmed by Antz co-director Tim Johnson. Hit the jump for more.