Italo post-disco stalwarts Klein & MBO were formed around the nucleus of Mario Boncaldo, Italy and electro-soul-house Master Tony Carrasco, USA. Vocals were performed by American-Italian jazz singer Rosanna Casale and American chorus singer Naimy Hackett. The electro catchy techy disco sounds and melodies were all produced, written, arranged and mixed by Mario Boncaldo and Tony Carrasco. During the mid-80s singles like 'Dirty Talk', 'Wonderful' and 'The MBO Theme' became major hits in both the emerging New York garage scene and Chicago's house community. Klein & MBO's first single 'Dirty Talk' was originally released in Milan, Italy, in 1982 and soon after in the US and Canadian markets, where it became a huge hit and released throughout the entire world.