Radiohead - Nude (previously called Big Ideas)
After what seems like ages Radiohead have released their brand new DRM-free/record-contract-free/user-picked/download only album "In Rainbows" and it's great. Buy it on the Radiohead site. The reworking of Nude is really great and the whole album is much more chilled and accessible than more recent stuff. I like.
Update: There are so very many great songs from Radiohead. Top 10 would have to include High and Dry, Paranoid Android and Idioteque.