Help me with this song.. Please?

[EffOffSpiders]

Just been watching episode 2 of The Inheritance and there's a song being played in the background when Sian is getting ready to go out (dressed in a red sparkly dress) which I can't identify from Google/YouTube/lyric finders etc. I put subtitles on which shows the song title as Big Girl by MASH? Has anyone else heard of it? 😊

Never heard of it, but I just used Shazam and it confirms Big Girl by MASH. Seems to be available on iPlayer but googling comes up with nothing! There's a German band called MÄSH... wonder if it's them?

Here's the image.

Thanks for that.. I have it stuck in my head 🙄😊