Complex sentence: Michael Allen Madden, also known as Mickey Madden (born May 13,1979) is an American musician, who is best known for being the bassist in the pop rock band, Maroon 5.
Split into simpler sentences: Michael Allen Madden (May 13,1979) is an American musician also known as Mickey Madden. Madden is best known for being the bassist in the pop rock band Maroon 5.