 Liar, truck on fire. Carly Pierce fans can look forward to a fiery new single on country radio. Truck on Fire hits the airwaves on July 29th. The revenge anthem tells the story of a woman who decides to set her cheating ex's truck on fire. It takes its melody from the children's song Liar, Liar, Pants on Fire. The track is featured on Pierce's new album, Hummingbird. And Shrek is returning to the big screen.