At a press conference for her debut movie "Battleship," the singer dismissed questions about whether she's involved with the "Two and a Half Men" star, after reports that she visited his house in Los Angeles.
When asked if Kutcher would be joining her in London for her promotional trip, Rihanna called the question "disappointing."
She says "I am happy and I'm single, if that is what you are asking."
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"Battleship," based on the game by Hasbro, is directed by Peter Berg and puts Rihanna in her first film role. She plays Petty Officer Second Class Cora Raikes, a weapons specialist, alongside Taylor Kitsch and Liam Neeson.
"Battleship" is being released in the U.K. on April 11 and the U.S. on May 18.