Rihanna's Tupac Thug Life Tattoo Causes A Stir Online - Picture

Rihanna's latest tatoo to rapper Tupac has caused a stir online and amongst her fans.

The singer posted a picture over Twitter yesterday (January 25) of her Tupac inspired pink inked knuckle tattoo:

'♫ All these bitches screaming that 2pac back ♫ #THUGLIFE.'

She later added: 'Tat my f*ckin name on u girl so I know its real!!! #MINE'.

Rihanna's tattoo was inked by Mark Mahoney, a legendary tattooist known for tattooing Cheryl Cole, David Beckham and Angelina Jolie.

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Tupac was murdered in 1996, after he was shot four times during a drive-by killing.

Rihanna's other tattoos include stars on the back of her neck, a star on her ear, a hand gun on her ribcage and the phrase 'Always a failure, Always a lesson' across her chest.

Meanwhile, Rihanna has become the most-viewed female musician on YouTube.

The singer has now passed 2 billion views on the site beating Lady Gaga thanks to the video for latest single 'We Found Love'.

Lady Gaga first reached the 1 billion milestone last year following the popularity of  the 'Bad Romance' video, which currently has over 443m views.

Rihanna - live