Ba Syme has 2 Olivia Newton-John concerts.

Olivia Newton-John (September 26, 1948 - August 8, 2022) was a singer, songwriter, actress, and activist. Perhaps best known for her role as Sandy Olsson in the musical "Grease," Newton-John was also one of the most prolific entertainers for nearly 60 years. She began her career in the entertainment business in 1963 when she was just 15 years old and continued until 2022 when she passed away at age 73. During these nearly six decades, Newton-John experienced great success, winning four Grammys, earning an induction into the Australian Recording Industry Association, and even earning an honorary degree from the University of Melbourne. In addition to her work as a musician and actress, Newton-John was also an activist for a number of health-related causes. She passed away from breast cancer on August 8, 2022.