For classic rock
Wishbone Ash the best classic rock there is at least give them try everyone should
http://www.youtube.com/watch?v=YFwhx_4q2Zg
http://www.youtube.com/watch?v=0rnUJAtpF2I
http://www.youtube.com/watch?v=fVx-ULd2VIY
http://www.youtube.com/watch?v=TNKoIsyGagQ
http://www.youtube.com/watch?v=Qqb3o6X6rME
http://www.youtube.com/watch?v=sD6OWWxt6h8
http://www.youtube.com/watch?v=W4Kmrz50Pjo
http://www.youtube.com/watch?v=AA14yV3daGY
http://www.youtube.com/watch?v=PzYuPfwYsj4
http://www.youtube.com/watch?v=-l8SgZIT3Tc
http://www.youtube.com/watch?v=2zfCQgfF5wI
http://www.youtube.com/watch?v=k0LbL7EyJt8
http://www.youtube.com/watch?v=lVA8-Jek1m0
http://www.youtube.com/watch?v=BYHCgjwXbB4
http://www.youtube.com/watch?v=FNJqVW2L5is
As for other classic rock just tossing some names out there besides ones already mentioned
Nazareth,Alice Cooper,UFO,Deep Purple,Jethro Tull,Grand Funk Railroad,Uriah Heep,Blue Oyster Cult,Emerson Lake and Palmer,the Moody Blues,Thin Lizzy,Genesis,Yes,Black Sabbath and a bunch more but gotta start somewhere.