Rihanna has shown off her new tattoo on Twitter which she got in a parlour in Hollywood this week.

The 23-year-old singer was inspired by the late rapper Tupac Shakur and had the words "Thug Life" inked onto her knuckles.

And instead of going for the usual black design she had the words tattooed in pink ink.

"All these b****es screaming that 2pac back #THUGLIFE," she wrote.

Tupac formed a group of the same name back in 1993 and released their only album Thug Life: Volume 1 the following year.

The Only Girl In The World songstress also appeared to have got another etching on her back as she posted another image of her lying down on her stomach with tattoo artist Mark Mahoney working on the design while she held a bottle of beer.

"I #LOVE my new tattoo!!! Can't wait for yall to see it!!! I got it in "Tibetan" this time!!! #approved," she later wrote. (sic)

Rihanna has approximately 15 tattoos already with no sign of stopping.