Who sang the highest notes in band Styx?

Styx was a band known for its versatile vocals and powerful harmonies, with multiple vocalists contributing to their songs. The highest notes in Styx songs were often delivered by Dennis DeYoung, the band's long-time lead vocalist and keyboardist. DeYoung possessed an impressive range and was recognized for his ability to hit high pitches in songs such as "Lady," "Come Sail Away," and "Fooling Yourself (The Angry Young Man)."