Is it normal that i imagine i'm someone else?

Ever since I turned 9-10, I've been doing this.

I would go on youtube, and search up a song or a performance, and I make up a scenario in my head that I'm singing that song infront of my school, or in a talent show.
I think out what I'm wearing, what the crowds doing, who's watching, and even how I'm moving.
I sit back and listen to the music, but in my head, it's me singing it.
It makes me happy, for some reason. And I can't stop it. Sometimes I pretend I'm on a talk show, or a tv show, or a movie, as long as I have audio to connect to, I imagine myself speaking/singing that audio in different scenarios.
It gives me some type of self confidence, especially since I can choose whatever I want in the daydream.
Is this normal?