Sen. Ted Cruz, R-Texas, entertained the congregation of First Baptist Dallas on Sunday by singing the hymn "Amazing Grace" to the tune of the "Gilligan’s Island" theme song.

Cruz explained to the congregation that he learned about the two songs being musically interchangeable while attending Second Baptist High School in Houston.

“That particular insight was told me when I was a senior in high school by the son of what was then the president of the Houston Baptist University – SBU,” Cruz explained as the crowd applauded. “I’ll let you decide whether that’s a good or bad thing you learn.”