When singer/songwriter Adrian Lyles played an opening set in Hollywood recently, he was shocked that people flew in from other cities just to catch it. “I was saying, dude, you really flew in from Oklahoma to see me play songs you haven’t heard? For a 15 minute set? The idea that some people are listening and loving it like that is an indescribable feeling, and it seems unreal.”

Such things will happen when you’re already a national name from a hit TV show; and Lyles is probably best known from Disney’s “High School Musical: The Musical: The Series” (His character Jet made his debut in Season 3). But Lyles, who’s now 20, has dreamed of performing his own music since before his teens. And as far as he’s concerned, his upcoming Boston show— even if it’s a Wednesday night at Brighton Music Hall, opening for the band Almost Monday— is as close to the big time as it gets.

“I think a lot of who you are as an artist comes from the people who inspired you to do it,” he said. “And I grew up listening to Twenty One Pilots and Jon Bellion. I fell in love with their ability to understand people that they had never met. And here I am, an 11-year-old kid in Texas listening to a 25-year-old man from Ohio, who completely knows the way I am. That’s what spurred me to jump in headfirst, and I was hoping I could also do that for someone.”

In fact, he says he only got into acting thanks to good luck and a zealous mom. “I really was a gig musician by the time I was 13, it was me and my parents calling anyone with a stage. Then COVID hit and we were trying to think of an avenue where I could get discovered. My mom had a musical theater background and she thought that would be an option — but I was not down for that and kept telling her no. So I auditioned for an agency in Texas, sang them a song and did a monologue. I shot auditions for two months and it seemed like eternity. Finally they said ‘Please do just this one more,’ and that changed everything.”

He wound up bonding with his fellow “High School” cast members and got some career advice from one of the more famous ones, Olivia Rodrigo. “She was the sweetest. I remember that I DM’d her when I started doing recording sessions and said ‘Hey, I’m about to start doing my original music, do you have any advice?’ I think she’d already hit with ‘Sour’ at that time. What she said was ‘Just find someone you jell with so you can relax and really be yourself.’ And she was exactly right.”

Signed to the Hollywood label, Lyles has so far released three online singles and has a full album pending release. The tracks display a strong voice and a mix of hip-hop beats and pop/R&B songcraft. And exuberant as he is in conversation, the best of them, “King of Everything” is steeped in self-doubt. “That came from all those years in small clubs, playing covers of songs by people that I love and idolize, with all that background noise. I was in the mindset of wanting to get better and better, but you can start hating yourself if you let it consume you. So that song is seven years of my life in three minutes and thirty-ish seconds.”

Adrian Lyles performs at Brighton Music Hall Feb. 5