Rihanna is vacationing in Hawaii to reportedly escape her frustrations over Chris Brown.

The 'We Found Love' hitmaker has fled the US for a vacation after learning her ex-boyfriend - who was convicted of assaulting her in 2009 - has got a tattoo of his current partner Karrueche Tran's face.

Chris is said to be so besotted with the Vietnamese model that he opted for an inking of her on his left arm, The Sun newspaper reports.

However, Rihanna seemed to be less than thrilled at the new body art, as she let rip on twitter.

She said: "Cuz of u I'm on some real f**k a n***a s**t!

"U wanna be my main squeeze n***a, don't ya?

"So what n***a, I'm not tryna hear that s**t! (sic)"

The 23-year-old singer later admitted she had rolled a "kush" - a strain of cannabis - cigarette and was pouring herself a drink.

Rihanna tweeted: "Kush rolled, glass full...I prefer the better things! (sic)"

Despite her latest rant, the Bajan beauty recently claimed she would "never wish anything horrible" on Chris - who is serving five years of probation after pleading guilty to attacking her - as her previous resentment for the rapper was "taking up too much" of her time.

She said: "I would never wish anything horrible for him. Never. I never have. It was too much anger. I'm really excited to see the breakthrough he's had in his career.

"It's incredible to see how he pulled out the way he did. Even when the world seemed like it was against him, you know? I really like the music he's putting out. I'm a fan of his stuff. I've always been a fan."