In this song, Chester Bennington sings about things we've done that we regret - how we want to forget it all and move on. According to Bennington, the theme. Watch What I've Done (Video) by Linkin Park online at vevo.com. Discover the latest music videos by Linkin In this farewell. There's no blood, there's no alibi 'Cause I've drawn regret. From the truth of a thousand lies. So let mercy come and wash away.