So, The Voice coach really had no choice but to agree to a planned pregnancy, or else he was going to get hit with an unplanned divorce.
The band then changed its name to Maroon 5 and released its debut album, chart.
Levine has also found success along the way by appearing on other musicians' albums, working with such superstars as Kanye West, Alicia Keys and Natasha Bedingfield.
Levine and Carmichael left Los Angeles for Long Island, New York, to attend Five Towns College, a music and performing arts school.
Living in New York exposed the pair to an entirely different music scene, involving large doses of R&B and hip-hop, and Levine would later say that living in New York had a large impact on his musical point-of-view.
The couple just revealed that they are pregnant with baby number one.