What Is
 

The song on the new Halifax adverts?
You know the ones where they're ripping off the OK Go video with the treadmills?
It's really catchy and it's stuck in my head but I don't know what it is!

The last advert i saw was the "something good" one. Is there a new one?

That's not Halifax it's a multi vitamin thing you take in the morning and it dissolves in water. I think. I remember the glass and the tablet.

I found it, it's for Berocca.

[ame="http://www.youtube.com/watch?v=KurTr2J7gNE"]YouTube - Berocca advert - OK You Go, but on a really good day[/ame]

The song is 'Living On The Ceiling' by Blancmange.

aha, thankyou :)
why did I think it was a halifax advert?
shows how much attention I pay XD

Aha, it shows how ineffective the advert is! It doesn't really fulfill it's purpose if you're not sure what it's for.
The song annoys me so much D: But you're right, it's catchy haha!