Iridescent

Linkin Park's Chester Bennington told MTV News that this mid-tempo ballad is one of his favorite tracks on A Thousand Suns. He said: "I think that 'Waiting for the End' and 'Iridescent' are probably tied at #1 [for my] favorite song on the record. I just think they're really beautiful. They're different. I like the way 'Iridescent' builds and climaxes."

A remixed version of this contemplative ballad featured on the soundtrack of the Michael Bay-directed movie Transformers: Dark Of The Moon and played over the film's end credits. Speaking to MTV News, Mike Shinoda of Linkin Park said, "We put out the record in the late part of last year and even though it's never been a single up until this point, [when we played it live] you could really hear the singing pick up momentum during that song. It was just something that seemed a natural fit." He added that the hopeful tone of the song appealed to both the band and to Bay. "We loved that part of it when we were in the studio, but Michael actually loved pairing it with the movie because there's something that he feels it speaks to about the story line."

This was the third Linkin Park contribution to the Transformers franchise. Their songs "What I've Done" and "New Divide" were featured in the first two films. Said Shinoda: "The Transformers collaboration has been really fun for us. I mean, we grew up playing with the toys. When we first got approached on the first one, we said yes based on the idea of taking that thing that we loved so much and bringing it to life in a modern way. As it's gone on, that's still a big part of it for us."