The singer, who won Best British Female at last week's Brit Awards, visited BBC Radio Two on Tuesday in a completely sheer polka dot top that showed off her bock strapless bra.
She confidently paired it with skinny leather trousers and chunky boots, covering up (a little) with a chic cream coat.
Ellie was at the radio station promoting her new single, Beating Heart, which features on the soundtrack of the new film Divergent.
She must have been pretty happy with her look, because she also instagrammed a pic of herself inside the studios looking relaxed, happy, and pretty.
Well, what's the old saying? If you've got...