Twenty One Pilots musician Tyler Joseph is expecting his first child, and his wife Jenna just revealed the sex! In a sweet and simple post to Instagram, Jenna gave her followers a peek at her growing baby bump, which Tyler poses next to. "We are pregnant! We're having a girl!" she wrote. Jenna added, jokingly, "Tyler already likes to take pictures with her more than me." In a follow-up Instagram post featuring photos of Jenna taken by Tyler, the 26-year-old mom-to-be showed off her bump in a pool, and it's safe to say that she's already glowing!

Tyler originally announced the news to fans while on stage [1] at Lollapalooza Berlin. He brought Jenna out and said, "I know I said I'm bringing a couple people onstage, and that's two." So cute; congratulations, Tyler and Jenna!