Singer for the alternative rock band Something Corporate who has also had success as a solo artist.
His first instrument was the piano, which he took up when he was eight years old. He formed the band Something Corporate while in high school.
He was featured in a documentary called Dear Jack about his struggle with leukemia. He wrote several songs for the NBC series Smash.
He married Kelly Hansch in 2006. The couple have a daughter named Cecilia Kate McMahon.
He has toured with Chad Gilbert of New Found Glory.