Paul Colman, (born 22 August 1967) is a British–Australian pop-rock guitarist, vocalist, pianist, and composer.

Colman was born and brought up in London; his father is Australian and his mother is British. When he was seven years old, his father left his successful life of theater and music for a life of ministry back in Australia. His father was a long standing Associate Pastor at Melbourne's Crossway Baptist Church and a well known gospel singer. Colman thus began his musical career living in Melbourne, starting his first band when he was eleven years old. During the first part of his life Colman did not take music too seriously, and focused on his career as a high-school teacher of history, English, and religion. He currently lives with his wife Rebecca and daughters in Nashville, Tennessee.

He has made a name for himself as a Christian musician independently, with his band the Paul Colman Trio, as a solo artist, and recently with the Newsboys. His songwriting abilities have been acknowledged with a Grammy nomination and Dove Awards.

The Killing Tree (sometimes abbreviated as TKT) was a metalcore band from Chicago, Illinois. They were another band of Tim McIlrath (Rise Against's lead singer), and also contain a former guitarist from Rise Against, Todd Mohney.

The Killing Tree were formed before McIlrath's other band, Rise Against, with a "female roommate [named Laura Cahill] at the time singing for [them] for awhile", McIlrath on guitar, Reu on bass, and Remis on drums. In an interview, McIlrath told the interviewer "I used to play in a band called Baxter with Geoff Reu and Remis, and we always had an itch to do heavier music."McIlrath was concerned that Rise Against's record label, Fat Wreck Chords would not want him recording with a different band, so all members of The Killing Tree used false identities when performing and recording. The Killing Tree has not had any album or EP releases since 2003.

The Killing Tree's musical style is less conventional than Rise Against. The songs are generally longer and have more metalcore influences, such double bass pedals and aggressive breakdowns. The vocals are primarily screamed, although many tracks alternate between screaming and clean vocals. The lyrics tend to be darker and have some violent themes. These qualities make the band less appealing to mainstream audiences than Rise Against.