The singer and Classic FM presenter stepped out in a monochrome dress by Dennis Basso.
Myleene's statement frock may have looked totally gorge but it wasn't the easiest of outfits to contend with. Check out this snap as Myleene crammed it into a taxi!
She added the caption: 'Finally got in...now to get out #oliviers'
There was a full 'glam squad' behind Myleene's statement look.
Make-up artist and 17 Cosmetics' brand ambassador Vanessa Guallar did her soft nude make-up, hairdresser Lisa Eastwood created her tumbling curls while celebrity stylist Nick Cox perfected her outfit!
Other starlets that hit the swish do at London's Royal Opera House included Diana Vickers and Alexandra Burke.
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