JOIN USThe 'Rude Boy' hitmaker showed off her curves in a pretty two piece bikini on Monday, also revealing the new tattoo as she tried her hand at paddle-boarding and kayaking in Honolulu.
The 22-year-old singer already has over a dozen tattoos over her body but this one isn't of a permanent nature, reported Daily Mail.
The new addition is just a temporary inking for her role in the movie 'Battleship', which she is currently shooting. Rihanna plays a naval officer in the action flick.
Loosely based on the popular board game, the film follows an international fleet coming together to save earth from alien invaders.
It also stars 'True Blood' actor Alexander Skarsgard and 'Friday Night Lights' star Taylor Kitsch as fellow naval officers alongside model Brooklyn Decker, and is expected to be released in 2012.
No details have been released about Rihanna's character, although she has been spotted on set wearing a uniform featuring a name tag with the label 'Raikes'.