Rihanna spent £100,000 on a luxury sports car for her brother for his 16th birthday.

The 'Pour It Up' singer reportedly splurged the huge sum on a Mercedes for her younger brother Rajad Fenty, undoubtedly making the teenager the envy of his peers.

For now, 16-year-old will drive the vehicle under strict supervision from Rihanna's mother, Monica Braithwaite, as he doesn't yet have a driving licence.

An insider told the Daily Star newspaper: "Rihanna surprised him with a black Mercedes. It's very flashy. He was over the moon, although he won't be able to drive without his mum in the passenger seat for months."

This isn't the first time Rihanna - real name Robyn Fenty - has presented one of her siblings with an expensive gift.

In March, she bought a beach side house for her 23-year-old brother Rorrey in her native of Barbados, before giving him an unspecified amount of cash to kick-start his rap career under the moniker of 'GQ'.

A source said at the time: "Rihanna's close to her brother, and she'll do anything to help him out. They hang out a lot and are the best of friends. She wants to make sure he can develop his talent without any money worries."

The 25-year-old R&B superstar was also seen gifting her mother Monica with keys to a brand new Barbados home during her appearance on 'Oprah: The Next Chapter' last year.