Who says friends can't give each other a hard time?
In case you haven't heard, Tom Hiddleston is on Instagram now, and the 35-year-old actor's Avengers co-star, Robert Downey Jr., welcomed him to the social media platform on Tuesday, by teasing him about that now-infamous "I heart T.S." shirt from the early days of his whirlwind romance with Taylor Swift.
"Join me in welcoming the biggest T. Stark fan of them all to Instagram! @twhiddleston," Downey, Jr. wrote, joking that the "T.S." inscribed on the shirt stood for Tony Stark a.k.a. Iron Man, who the 51-year-old actor plays in several Marvel franchise movies.