Lester Young
A hugely important tenor sax player in the swing era. Nickenamed "pres" (as the president of all sax players), he is characterized by his light, relaxed style, almost like he's singing through the saxophone. It's a quiet, calm virtuosity.
Played with Count Basie and His Orchestra.
He liked wearing his pork pie hat, which is why when he passed away in the 40s the song Goodbye Pork Pie Hat by Charles Mingus when he became a larger name.