2018 release. "I Can Only Imagine," arguably one of the most popular and powerful songs in Christian music history, has taken on a life of it's own and is now the subject of a worldwide motion picture of the same name. In celebration of the movie release, MercyMe is unveiling I Can Only Imagine The Very Best of MercyMe, a collection of the band's best-loved songs spanning their illustrious career. In addition to the original of "I Can Only Imagine," this release includes a special version of the song made just for the movie. This 13-song anthology is the definitive collection of MercyMe with recent favorites "Flawless" and "Greater" as well as the classics "Word of God Speak," "Bring the Rain" and "God with Us."