Rihanna was spotted rocking a sexy silver cut-out bathing suit while chilling on a boat yesterday. See the pics inside and find out how many Twitter followers the "Talk That Talk" singer is up to............

Rihanna spent her Tuesday afternoon lounging on a boat in Hawaii.

She posted a shot of her hot bikini bod on Twitter saying, ‘Wake...Bake...#CAKE.’

The 23-year-old singer recently celebrated reaching 12 millions followers on Twitter.  She tweeted, “I love u so much! Can’t believe we’re here already… #12Milli thank u.”

RiRi fans can catch the singer in Battleshipwhen it hits the movie houses on May 18, 2012.