The term "T-Birds" often refers to the iconic group of greaser characters from the classic musical film Grease. These characters, known for their leather jackets and slicked-back hair, embody the rebellious spirit of the 1950s. The T-Birds, led by Danny Zuko, are a group of high school boys who enjoy rock and roll music, fast cars, and hanging out with their friends. In addition to their role in Grease, T-Birds can also refer to the classic Ford Thunderbird, a stylish car that became popular in the 1950s and 1960s. The Thunderbird is known for its sleek design and powerful performance, making it a symbol of American automotive culture.