Taking his cue from the wave of Westernization in Japan's urban music scene, R&B-heavy rapper Seamo collaborated with the highly popular female hip-hop duo Bennie K in 2004. With strong results on the track, Seamo released his debut in 2005, which garnered only mild success. 2006 saw Seamo return with a new single, "Mata Aimashou," which cracked the Top 20 and lingered on the charts with sustained sales over a long period of time. With growing popularity, his follow-up album Live Goes On, reached the elusive Oricon number one position in the week of its release. 2007's Cry Baby performed well, but it was 2008's Round About, with a new batch of star cameos, that brought Seamo back onto the charts strongly, peaking at number two. ~ Adam Greenberg