On Sunday, Tesla and SpaceX CEO Elon Musk turned 49. The tech billionaire has been trending on Twitter, as many of his fans wished him by calling him “real superhero”. An Indian Twitter user wished him by saying: “Only Human who is using more than 2% of his brain. Happy Birthday, @elonmusk” and shared a photo of Elon sitting next to launch motor mounts of SpaceX Dragon. Currently, Elon Musk has 36.3 million followers on Twitter. On 4th May, Elon Musk and his singer wife Grimes welcomed their child and later revealed his name as “X Æ A-12 Musk”.