in regards to that yoghurt ad, have a look at these articles, they appear to have ripped off a song from an australian band, the John Butler Trio:
http://www.abc.net.au/triplej/musicnews/s3424923.htm
http://www.abc.net.au/news/2012-02-08/john-butler-trio/3817414?section=wa
http://msn.foxsports.com/nfl/story/John-Stamos-Super-Bowl-commercial-copyright-fight-with-Australian-band-John-Butler-Trio-020612