Rihanna Goes "Swimming With Sharks" As She Posts Bikini Pictures On Twitter

18 January 2012, 09:15 | Updated: 18 January 2012, 09:51

The 'You Da One' star tweets fans about her Hawaiian holiday.

Rihanna has revealed that she has been swimming with sharks.

The 'We Found Love' star is currently on holiday in Hawaii, but has been keeping fans up to date with her vacation on Twitter.

On Tuesday (17th January), RiRi posted two pictures of herself wearing a bikini and later revealed why she had been wearing the outfit.

"Swimming with Sharks is one of my favorite things I've ever done," she wrote.

In another post later Rihanna also posted a picture of her chef posing in the kitchen.

Meanwhile, the 'You Da One' singer has had cause to celebrate this week after passing 12 million followers on Twitter as well as being nominated for Best International Female at next month's BRIT Awards 2012.

Rihanna's latest promotional shots for her Armani underwear and jeans range were unveiled this week.

View Rihanna's bikini pictures taken in Hawaii below (Picture: Twitter).