This week, 49-year-old actor Vin Diesel made his debut on Twitter, sharing a shirtless photo of himself, along with the caption, ?Thanks for the love.? Diesel is new to Twitter , but he's no stranger to social media with over 30 million followers on Instagram and more than 100 million likes on his Facebook page. On his Instagram page, Diesel made the Twitter-joining announcement, writing, "Better late than never haha. I am new to Twitter but I hope this will clear up some of the confusion regarding fake accounts. These are my only social media accounts period."