The Lettermen co-founder Tony Butala died Sunday at age 87. Known for their Grammy-nominated vocal harmonies, the group gained fame in the 1960s. Butala was a key member of the trio, recognized for their smooth vocal style. The Lettermen became one of the most popular vocal groups of their era. Their hit song "The Way You Look Tonight" remains a classic. Butala's death marks the loss of a significant figure in music history. The group's legacy continues through their enduring recordings. Fans and music historians remember Butala for his contribution to vocal harmony. His passing is a notable event in the music world.