Rock Music in Sri Lanka dates back to the early 1970s when Kumar Navaratnam and friends staged the first Rock Festival at the Havelock Park in Colombo Sri Lanka. Kumara Navaratnam could be hailed as the Main strength behind the evolving rock music scene then along with others like Prins Jayaratnam and the Unwanted Generation, Prasanna Abeysekara's Coffin Nail, Neville of Acid, Gobbledegook and Sweetie Pie, which was led by pianist Nimal Goonawardane, Mary was the only Rock band to play all original music at that time and was led by Ravi Balasooriya of "Bugs" fame. Other members being Aruna Siriwardane, Benjy Ranabahu, Dilup Gabadamudalige and Dwight Van Gramberg. Ramesh Weeratunga, who was a composer/solo performer of this period, went on to become a professional musician/songwriter in Germany, releasing several solo albums.