The second track features their first guest musician, Japanese guitarist Tomoyasu Hotei. The song is called "Grace" and offers up some interesting guitar/cello melodies. While the two stringed instruments play together, they deliver a very catchy line that is sure to get itself stuck in your head. I know, I was humming it for some time after it ended.

The first single is also the third track. It is a more commercially targeted song, yet retains a distinct dose of originality. "I'm Not Jesus" features Stone Sour/Slipknot frontman Corey Taylor letting the screams die down in favor of one of his better singing performances. The song is quite good, showing off a different style for the band.

Other guests include Rammstein's Till Lindemann singing on the nicely arranged cover of David Bowie's "Heroes," performed here in German and called "Helden." The cello arrangement sounds absolutely epic and Lindemann's commanding voice completely fills out the cover. On "I Don't Care" vocal duties are filled by Adam Gontier from Three Days Grace. It is an angst filled song that would not be out of place on your local rock station. Lacuna Coil's Cristina Scabbia sings on the most radio friendly track called "S.O.S. (Anything But Love)." The song is beautiful and haunting and something I would love to hear on the local radio station.

There is one other guest, a name familiar to Apocalyptica fans. On "Last Hope" drummer Mikko Siren steps aside for Dave Lombardo. The song is pure speed metal. Rapid fire drums, heavy riffs, and quick licks are the order of the day on this speed driven track that rivals Slayer's intensity.

Overall, Worlds Collide has a distinctly commercially oriented sound, yet there is enough heavy fringe flavor to keep me satisfied. It seems as if they could be making a play for a mainstream audience, which I would certainly not begrudge them. Even with the commercial tinges they remain an exciting voice for originality. This is a high quality release that deserves as much attention as they can garner.

Bottomline. If you are not familiar with Apocalyptica, get your hands on this album, fall in love and work your way deeper into their catalog. I know I know I will be going back to fill in the gap in my collection. This release will surely blow you away.

Highly Recommended.