Tre Cool is an American musician best known as the drummer for the punk rock band Green Day. Born on December 9, 1972, in Frankfurt, Germany, he joined the band in 1990, contributing to their rise in popularity with albums like Dookie and American Idiot. His energetic drumming style and charismatic stage presence have made him a key member of the group. In addition to his work with Green Day, Tre Cool has collaborated with various artists and bands throughout his career. He is known for his playful personality and often engages with fans during performances, making him a beloved figure in the music community.