It included the songs Mango Nanda, Ruwan Puraya, Seetha Ude and Menike. Their 1968 debut EP 'Mango Nanda' was released on the JVPC007 Philips label selling up to 5,000 copies.
The young musicians were mentored by Sri Sangabo Corea, together with veteran Radio Ceylon/ SLBC broadcasters Vernon Corea and Vijaya Corea. Managed by an advertising icon, Sri Sangabo Corea, the group recorded several songs, which aired on the Saturday Star program in 1966. Wijewardena formed the Moonstones at the age of 21 with Annesley Malewana as lead vocalist. Wijewardena died on 13 December 1996, at the age of 53, in Sri Lanka after a long struggle against ruptured gastric ulcers and gangrene due to acute Diabetes. He married Sheela Ramadasa and they had one daughter, Amila Priyadarshani. He completed education from Hatton Highland College and Mahasen College, Yatawatta. His family moved to Batugedara, Ratnapura, and Clarence abandoned a budding career as a planter to pursue music full-time.
Clarence Wijewardena was born on 3 August 1943, in Haputale, Sri Lanka, to an estate medical practitioner.