Music composer Ilaiyaraja has sent a legal notice to his long term colleague Veteran Singer SP Balasubramanyam, asking the singer to not perform any song composed by him without his permission.

The singer is currently on his SPB50 tour which started in August in Toronto. He, along with other playback singers Chithra and Charan, performed in Russia, Sri Lanka, Malaysia, Singapore, Dubai and did several shows in India as well.