T-Ruff and others in the comments inform me that the song is "You Fight Me" by Breaking Benjamin from their Phobia album (this would be an example of how YouTube helps, not hurts, bands).
Update: Added song info above. Also T-Ruff has two additional Transformers related videos.
Transformers Preview - Similar to above, a music video based on the first movies trailers and TV spots
Megatron - Music video "starring" Megatron.