The band returned yet again to the studio to record their fourth album in the fall of 2006. The same year also witnessed Thunderstone’s first appearance in the USA. In October the band was invited to take part in the Finnish Eurovision Song Contest. Never shy to take on a new challenge they agreed. Again, what started almost as a joke ended up in success: The band was voted second, losing only narrowly to Finnish Idol Hanna Pakarinen. The Eurovision fame resulted in the release of two singles, 10.000 Ways and Forevermore/Face in the Mirror, which both went straight to the top 3 in the Finnish single charts. Finally, the efforts of the previous studio sessions came to fruition when Thunderstone’s fourth studio album Evolution 4.0 was released in March 2007. Showing a darker side of the band and definitely moving them away from the “power metal” of their first release, the album was liked by the fans and entered the Finnish charts at No. 10. Again, a Finnish tour and summer festivals followed.