Rihanna splashed out $135,000 on two items at the 2014 amfAR Gala on Wednesday night.

As well as splashing the cash at the event at Milk Studios, Hollywood, the raven-haired beauty took to the stage to present the Inspiration Award on behalf of amfAR - the foundation for Aids research - to designer Tom Ford, and praised him for being a fashion "genius".

Before inviting the 53-year-old star onto the stage to collect his prize, she told the crowd: "I'm thrilled to be here tonight to present amfAR's award of inspiration to one of the world's most admired and creative, accomplished designers.

"Tom Ford's genius spans the entire spectrum of style, from the suave elegance of James Bond to womenswear and accessories with an attitude.

"Everyone looks good in Tom Ford. He brings the same sophistication and talent to everything he does, whether it's transforming the fortunes of Gucci or creating and building his own now-iconic brand.

"Tonight we honour Tom Ford for both his incredible talent as well as what he stands for. We honour him for inspiring us with his creative genius, his leadership, his integrity and generosity.

"We honour him for doing good while making us look good."

Rihanna sat on the same table as her long-time friend Justin Timberlake - who she collaborated with on her track 'Cold Case Of Love', which appeared on her 2009 album 'Rated R' - and dazzled in a white dress which featured nude breast panels.

While her modesty was covered thanks to several purple sequins, the star took to the opportunity to show off her stunning slim pins courtesy of the gown's hip-high split which also enabled her to show off her black stockings.

Miley Cyrus, who was joined by her mother Tish, also left little to the imagination at the star-studded event - which raises money for amfAR's Aids research programmes - in a bondage-style dress which barely covered up her assets.

Several other stars also attended the gala, including Gwyneth Paltrow, Rose McGowan, Lea Michele and Brazilian beauty Alessandra Ambrosio.