Actor Kamal Haasan took to Twitter and congratulated music composer MM Keeravaani and SS Rajamouli after the 'RRR' song 'Naatu Naatu' won the Oscar for Best Original Song. "My hearty congrats to Mr Keeravaani, Mr Rajamouli and the fabulous team of 'RRR'. One more prestigious American recognition for our talented Indian artiste," Kamal tweeted.