Rihanna ditched her bright red hair and outrageous outfits while in Hawaii yesterday -- so she could get to work on her film debut.
Dressed in camo pants, boots, baseball cap and a sleeve of tattoos, RiRi was spotted on set for the upcoming flick "Battleship," which co-stars "True Blood's" Alexander Skarsgard and "Friday Night Lights" star Taylor Kitsch.
The movie, loosely based on the board game of the same name, revolves around a Naval fleet fighting an alien invasion.
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