I only recently discovered the album 'If You Can Believe Your Eyes and Ears' by Mamas and Papas. Its a beautiful listen, quite reminiscent of Rumours by Fleetwodd Mac in that you feel like you've known it your whole life after only a few listens - majestic pop music

This is my favourite though:

http://www.youtube.com/watch?v=p7dt_i4TRyU