The "Grenadier" theme was first started by Ronald P. Sherry. The Band was previously known as the Liberty High School Marching Band. Since 1926, there have been only four Directors: Joseph Ricapito (1926-61), Ronald P. Sherry (1961-90), Greg MacGill (1990-2013), and Kevin Long (4) (2013-Present); and only four Assistant Directors: Clark J. Hamman (1973-78), Greg MacGill (1978-90), Kevin Long (4) (1990-2013), and Allen Frank (2013-Present).
The band is modeled after the Coldstream Guards, a regiment of the British Army. In their uniforms, the buttons are imported from England, the belts are used belts of the Coldstream Guards, and some members wear real bear skin hats. The Liberty High School Grenadier Band is the only band in the world that can wear these authentic uniforms because of their partnership with the Coldstream Guards. The band also has an auxiliary unit with 21 majorettes, and 21 bagpipers and 7 pipe drummers who play at events across the Lehigh Valley, at school events, funerals, corporate requests, and community events are among the places where these students are requested.
The Grenadier Band has performed with the Coldstream Guards Band both in the United Kingdom and in the United States of America. They have also played at the 2009 Tournament of Roses Parade, the Macy's Thanksgiving Day Parade, Pearl Harbor, Disney World, Disneyland, Harry Truman's Inuaguaral Parade, in Canada, the 1939 World's Fair, and a multitude of other parades, fairs, and professional sporting events.