For three years, he contributed lyrics and songs for the band.The band rose to national attention when Maroulis appeared on Idol.He was brought up in the Greek Orthodox religion and he can speak Greek.His older brother, Athan Maroulis (born 1964), is a record producer and his sister, Anastacia P. When Maroulis was five years old his family moved to Wyckoff, New Jersey, an affluent suburb of New York City, where he grew up.
Maroulis graduated from Ramapo High School in 1993.
The performance, broadcast nationally on the NFL Network, was hailed by commentator Bryant Gumbel as "a stirring performance." Maroulis has also performed the Anthem at Madison Square Garden, in April 2009, before a crowd gathered to see the New York Knicks take on the New Jersey Nets.
Constantine (supported by Ben Phillips, guitarist/vocalist for the NYC-based hard rock band FAMOUS) embarked on another solo tour across the eastern U. in February 2008, playing to sold-out venues in various cities including Boston, Philadelphia, New York, and Annapolis.
He attended the The Boston Conservatory of Music, where he received a Bachelor of Fine Arts degree in Musical Theater from the Boston Conservatory of Music and a minor in voice from the Berklee College of Music in 2002.
He was in the cast recording of the 2000 musical, Suburban Dreams, which was produced by composer Stephen Thompson, Richard Kenner, and Jesse Merz.