Olly and Robbie both entertained the crowd at the event, held at the London Palladium, and were pictured backstage afterwards meeting Prince Charles and Camilla Duchess Of Cornwall.
The pair, who toured together earlier this year, were both suited and booted in smart threads and stood in line as the Royals made their way along greeting everyone.
Former X Factor star Olly was then snapped beaming as his good friend Robbie shook Charles' hand and made polite conversation with him.
It was certainly a night of glitz and glam. Along with Robbie, Olly and this year's Britain's Got Talent winners Attraction, Jessie J also stunned in a standout gown and barely-there make-up.
The Royal Variety Performance 2013 will air on ITV1 on Monday 9 December.
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