Charlie Puth is a 25-year-old American singer who, like many others these days, owes a lot of his success to social media.

So, not forgetting his original fans, Charlie took to Instagram earlier this week to post a… shirtless bathroom selfie. Not a fan yet? You will be now.

Charlie Puth bathroom selfie
Photo: Instagram

As this photo clearly shows, Charlie’s been working out a lot in recent months. And we’re not the only ones who noticed – Shawn Mendes, who shared some of his tour stages with Charlie, recently revealed that Charlie’s been sending him workout selfies.

So, what’s all the fuss about? There you go:

https://www.instagram.com/p/BU1AxdiBA56/?taken-by=charlieputh

And a look at those muscles from behind:

https://www.instagram.com/p/BTuk9k_h0Qv/?taken-by=charlieputh

Active Duty holiday sale

Oh, and if you’re now wondering what his face looks like…

https://www.instagram.com/p/BTJ9rg9hBpy/?taken-by=charlieputh