George Strait wasn't the only singing in front of the record setting crowd of 81,000+ on Sunday night at NRG Stadium for the Houston Livestock Show & Rodeo. If you didn't know Strait's new album Honky Tonk Time Machine, his grandson Harvey joins him on the “God & Country Music.”

Guess who showed up to sing the song with his grandpa? Harvey.

George Strait will release his 30th studio album, Honky Tonk Time Machine, on March 29th.  Most recently Strait released a new single to radio called "Every Little Honky Tonk Bar." The song debuted inside the Top 20 on the Billboard Country chart, marking King Strait's first trip inside the Top 20 in over half a decade.