Is it weird messaging a guy you don't know on Facebook but are interested in? What do guys think?

So I messaged this dude on Facebook messenger who showed up on my people you may know page. As someone who's into music I was curious because on his profile pic it showed that he played the guitar and posts covers. We only have 2 Facebook friends in common and I thought he seemed like an interesting person bc we share and play the same music so I decided to send him a message:

"Hey, I just wanted to introduce myself because Facebook thinks we may know each other but even though that's most likely not the case, I wouldn't mind making more friends that are musicians! You're an amazing guitarist and singer!"

He seemed really cool so I wanted to take the risk and send a message, tho it seems like he isn't on Facebook often and I sent this a week ago, the last thing he updated was in February so I can see. I'm not sure if guys wouldn't mind someone sending a message or how a guy would react cause we don't know each other at all, but would this be seen as weird?
Is it weird messaging a guy you don't know on Facebook but are interested in? What do guys think?
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