I recently contacted Sony about the problem about us not getting this song in UK and this is what they said.......
Thanks for your e-mail about Rock Band 3.
I can see from your e-mail that you'd like to know why 'Glory Of Love' by Peter Cetera, is not on the PlayStation Store. The decision whether or not to release any extra content for games would ultimately be down to the publisher. The publisher of Rock Band 3 is Harmonix and you may wish to forward your query to them.
If you have any other queries please call PlayStation Support on 0844 736 0595, quoting reference 3025646, where one of our team will be happy to help you. You’ll find our opening times below, however you might find it easier to speak to our team during our quieter period between 11:00 and 15:00. Calls to PlayStation Support cost 4p per minute from a BT land line however calls from other providers and mobile operators may vary.