Am I going mad or is it now common practise for adverts to have music that sounds eerily like other tunes?

The most recent being the BT advert with the tall long haired blonde bloke, who is in that on/off advert romance with that (quite foxy) dark haired divorced chick with the annoying kids, kicking a football up a tunnel past Michael Owen and Shay Given. The tune in the background is surely just a Grizzly Bear rip off - 'Two Weeks' I think.

There have been others over the years but I'll let you lot suggest, with links if possible, others.