Remmy Zero- tempest (season 1 finale)
Steadman- Fever (season 2)
Lifehouse- Spirit (Season 4) Also probably the best known band to have songs on Smallville other then Remmy Zero. Lifehouse also had songs in the pilot and 200th episode.
The All American Rejects- Wither (season 6)
One Republic- Hero (Season 7)
Please add more guys if u find any i missed.