It was on Strictly Come Dancing Saturday before last playing in the background while they were talking about Ed and Katya. It's between 49.33 - 50.03
http://www.bbc.co.uk/iplayer/episode...ries-14-week-5

Marina & The Diamonds - Hollywood

https://www.youtube.com/watch?v=n1VTcJfL7RE

Brilliant.
Thanks very much Hitstastic.