Little Yellow Jacket made his debut in the PBR in the year 1999 and went to his first PBR World Finals that year. Little Yellow Jacket competed in the major leagues of the PBR - the Built Ford Tough Series (BFTS) (known as the Bud Light Cup Series until 2003) starting in his first year. From the beginning to the end of his career, Little Yellow Jacket was said to either "help a rider earn a score in the elite 90s or he'd serve up a dirt sandwich". The bull seemed to know when he won. After he bucked someone off, he would seek his owner Joe Berger out for his approval. He might also show himself off to the crowd. "They'd put him in the chute and he'd go out, throw the guy off and would prance around, and it was like he was saying, 'I knew I could bust your rear,'" Tom Teague said. "But if a rider happened to ride him, he'd better look out, because Little Yellow Jacket just might try to hook him." But in the end, Little Yellow Jacket never hurt anyone. He mostly had a reputation for being a gentle bull. As a rule, he "would not only not try to come after his fallen rider, but would try to avoid and move around the grounded rider".