I finally worked out what it is that "Love Machine" by Girls Aloud reminds me of. It's Christmas Wrapping by the Waitresses. I then listened to both songs back to back, and of course they sound nothing like each other. But the one still reminds me of the other.
Following on from this musical bent, but for no particular reason, here is a haphazard list of bands and musicians that I think sound like places on the shipping forecast:
Can't think of any more just now, so add your own in the comments, and I might just care.