smallville question

[lion-o]

In season 4 of smallville episode 17 'spirit' there is a band that plays music for clarks prom night, two questions

1. Who is that band?
2. What is the song they sing at the very end of the episode?

Does anyone know who they are? Can anyone help me out here?

[Cronos]

Lifehouse - You and Me

[lion-o]

thank you cronos, you are my saviour ;)