Rita Ora shows off sexy side in cutaway metallic frock and over-the-knee boots to party ahead of tour rehearsals

Silver siren: Rita Ora shows off sexy side in cutaway metallic frock and over-the-knee boots to party ahead of tour rehearsals

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UPDATED:

14:38 GMT, 24 August 2012

She's got a lot to celebrate at the moment, with her latest single currently holding the number one position in the UK chart.

And as she's about to start her tour rehearsals, Rita Ora ensured she headed out for a night of celebrations and partying last night (Wednesday).

She headed to London hotspot Mahiki to let her hair down, and she ensured all eyes were on her by dressing in a sexy silver frock.

Silver lining: Rita Ora shows off her sexy side in a daring cutaway frock and over-the-knee boots

Silver lining: Rita Ora shows off her sexy side in a daring cutaway frock and over-the-knee boots

Ora, 21, showed off her curves with the cut away detailing over her cleavage.

While her thighs were also on show with the mini-dress cut and over-the-knee boots.

Rita wore her bleach blonde locks down and curled with her trademark red lipstick vamping the look up.

Daring number: The singer was at London hotspot Mahiki celebrating her number one hit and letting her hair down before her tour begins

Daring number: The singer was at London hotspot Mahiki celebrating her number one hit and letting her hair down before her tour begins

Home time! She was joined by Rizzle Kicks' Sylvester who jumped in her cab for a ride home

Home time! She was joined by Rizzle Kicks' Sylvester who jumped in her cab for a ride home

Despite partying the night away Rita emerged from the club looking fresh without a bit of make-up of hair out of place.

And she was joined by Rizzle Kicks' Harley “Sylvester” Alexander-Sule to mark her single Party and Bulls**t reaching number one in Britain this week.

All smiles: She looked happy as she jumped in the car joking around with the hip-hop star after a fun night out

All smiles: She looked happy as she jumped in the car joking around with the hip-hop star after a fun night out

Giggles: Rita looked stunning as she enjoyed a night off before the real hard work begins

Giggles: Rita looked stunning as she enjoyed a night off before the real hard work begins

He emerged from the venue with her and even jumped in Rita's taxi for a lift home.

Although he dressed more casually in jeans, a white T-shirt and camouflage jacket.

She looked happy and content as she joked around with the hip-hop star in the car before the vehicle was whisked away.

And it was a welcome break for the star as she's started rehearsing for her energetic routines ready for her upcoming tour.

She wrote on Twitter yesterday (Wednesday): 'ORA is so close in rehearsals right now! Sweating! This show is going to be amazing!!! Ur all gona be surprised!!!!'