You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who is i can only imagine based off of?" whose answer is Bart Millard.
Each document should contain about 30 words, and these documents should contain useful information.

Query: origin of "I Can Only Imagine" song
Useful Output:

Doc 1: Bart Millard Reveals The Origin Of His Biggest Hit "I Can Only Imagine" | Huckabee  'Amy Grant Asks Bart To Perform His Song' Scene | I Can
Doc 2: No one is out of the reach of Christ." MercyMe Music Join us Saturday at 8PM for a double feature of I Can Only Imagine and Overcomer at The
Doc 3: “I Can Only Imagine” is sung in every context, from worship services to funerals, and has been recorded in almost every musical genre, from
Doc 4: Millard says he came up with the song in the middle of the night alone on a bus after a concert. He was moved by the phrase “I can only imagine,
Doc 5: In 2001, Christian rock band MercyMe released "I Can Only Imagine," the lyrics for which lead singer Bart Millard wrote in just ten minutes.