Singer-songwriter Teddy Geiger has announced he is transitioning.

The 29-year-old revealed the news in an Instagram post on Friday morning in response to a fan who had asked, “why do you look different lately?”

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The image featured Geiger’s reply, which said, “Okay… because u asked nicely… I am transitioning. I started talking about it with a couple of my close friends and family about a month ago and it’s given me the courage to start the process. I feel like the next step is to tell all y’all. So here goes.”

“Love it or hate this is who I have been for a looooong time. I love u guys. Talk sooooon byeeee,” Geiger added.

The singer first came to prominence in 2004, appearing on VH1’s reality series “In Search of the Partridge Family”. In 2006 he released the album “Underage Thinking” and the hit song “For You I Will (Confidence)”.

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More recently, Geiger has been known as a songwriter, writing the words to One Direction’s “Where Do Broken Hearts Go”, and several songs for Shawn Mendes, including “Treat You Better”, “Stitches” and “Mercy”.