The Haygoods represent Branson in St. Louis

The Haygoods recently promoted Branson in the way they do the best—by singing.

The talented sibling musical group was asked to sing the National Anthem at the St. Louis Cardinals April 15 game against the Cleveland Guardians.

Thousands of fans at St. Louis' Busch Stadium—and millions more watching on television and streaming sources—marveled at the Haygoods' unparalleled vocal harmonies as they sang America's greatest song.

"Thank you, St. Louis Cardinals," said The Haygoods in a Facebook post. "It was a pleasure to honor our country with the National Anthem."

St. Louis beat Cleveland by a score of 5-3.