Do What You Gotta Do. Do What You Gotta Do is a song written by guitarist Pat Flynn and recorded by the New Grass Revival for their 1989 Capitol album Friday Night in America. The song was also recorded by American country music artist Garth Brooks. It was released in January 2000 as fifth and final single from the 1997 album, Sevens. The song reached number 13 on the U.S. Billboard Hot Country Singles & Tracks charts and peaked at number 18 on the Canadian RPM Country Tracks chart.