The Welsh model was seen leaving the Piccadilly Theatre in central London on Wednesday (11 December) after catching a showing of Dirty Dancing with her mum.
Imogen braved the freezing cold in bare legs but kept her upper half toasty in a camel coloured coat that was cinched at the waist with a cute buckle detail.
Sadly for us she kept her coat buttoned up so we couldn't get a proper glimpse at what looks like a slinky little red dress underneath!
Imogen clearly had a good night, beaming for photographers as she left the show. Earlier in the day she'd tweeted: "Morning! I can't wait for the dirty dancing show tonight with my mam. Nobody puts baby in the corner."
She also shared a picture of herself and her mum at the show.
Imogen is a mother herself to baby daughter Ariana, born in February. No doubt she'll be dusting off the Dirty Dancing DVD and enjoying a similar mother-daughter night with her youngster in years to come!