Rihanna takes it a step too far as she shows off her new grills

It's the trend sweeping the celebrity the world - with rarely a day going by without one star or another showing off their blinged-up smile.
But Rihanna took her love of grills a step too far on Wednesday as she unveiled her new oral accessory.
The singer posted several shots on her Instagram page showing off the new addition to her grills collection - a gold pair in the shape of guns.

Taking it a step too far: Rihanna shared a picture of her new gun grill on her Instagram page on Wednesday

Never one to shy away from controversy, Rihanna was seen running her tongue over her teeth in the picture, captioning it: 'Up watching Cocaine Cowboyz #KillinDeseHeauxz #phuckyogrill #ilickthegunwhenimdonecuziknowthatrevengeissweet.'

The top half of the grills were moulded into the shape of a machine gun, while the bottom were just plain gold.

Rihanna then tweeted another shot of her new accessory, writing: 'She + AK.'

Her comment is believed to have been in reference to an AK47 assault rifle.

Controversial: The grill had been moulded to look like an AK47 assault rifle

Barely there: Rihanna was seen wearing next to nothing a she attended the Kadooment Day carnival in Barbados earlier this week

While grills are a popular celebrity must-have, celebrities are doing their utmost to one up each other with their various twists on the trend.

As well as Rihanna's gun, Beyoncé posted a picture on her Tumblr earlier this week of herself looking somewhat vampiric wearing a fanged diamond and gold grill.

Miley Cyrus and Kesha have also been seen wearing grills in recent months.

In fact, Miley is such a fan of the accessories that she admitted in a recent interview she always carried around three different options with her - so she is never without a grill.

Of Miley's most worn grill is her 'chill grill' - a plain gold option. Miley said: 'This is when I'm trying to be chill. I'm trying to blend in.'