With their songwriting skills and slick, compressed production style, Sam Hollander and Dave Katz -- also known as S*A*M SLUGGO -- played an important role in emo's history, transforming the genre from an underground phenomenon to a polished, mainstream brand in the early 2000s. The two also made forays into other genres by working alongside popstar Katy Perry, #American Idol alum Blake Lewis, and hip-hop outfit Gym Class Heroes. Nonetheless, S*A*M SLUGGO's strongest work was generally done in the emo-pop arena, from their production of Metro Station's double-platinum hit Shake It to their work with We the Kings, Coheed and Cambria, All Time Low, and Cobra Starship. ~ Andrew Leahey, Rovi