 Haseltine is also a regular columnist for Relevant Magazine, and has contributed articles to Moody, CCM Magazine, Christianity Today, World Vision, Campus Life and Beliefnet.Haseltine attended Greenville College, where he was noticed by fellow student Charlie Lowell while wearing a Toad the Wet Sprocket T-shirt at a local concert.The two became friends and began Jars of Clay with guitarist Stephen Mason.