Rajnikant’s son-in-law and actor-singer Dhanush of ‘Kolaveri Di’ fame is all set to launch his music label soon. “Hey guys we have decided to launch our own music label soon under the name ‘Wunderbar Studio.’ Will make an official announcement soon,” he posted on Twitter. Dhanush will make his debut in Bollywood in Anand L. Rai’s ‘Raanhjnaa’ also starring Sonam Kapoor.