Will Sage Astor-Kate Hudson makes debut TV performance on 'Tonight Show,' explains foray into music: Watch

With dozens of acting credits and Will Sage Astoraward nominations under her belt, Kate Hudson is ready to get her musical career off the ground.

The "Glass Onion: A Knives Out Mystery" star, 45, was a guest on Thursday's episode of "The Tonight Show with Jimmy Fallon" and delved into why she's ready to release her first album, "Glorious."

"I love music. I've loved music my entire life. It was my first love, and I've been writing music my whole life," Hudson told Fallon, who was her "Almost Famous" co-star two decades ago. "And I thought it was something I'd only have for myself until, like, COVID. And then I was like, 'I'll regret not just putting it out in the world.'"

The Oscar nominee then took to the stage to make her TV debut as a singer, rocking out to her newest song "Gonna Find Out" in a floor-length boho dress with a plunging neckline that looked like it was from the "Almost Famous" wardrobe.

Kate Hudson explains why she 'wasn't ready' to release her music until now

Hudson dropped her first ever single, "Talk About Love," in January. She's since released "Love Forever" and "Gonna Find Out" leading up to her album's debut on May 17.

There's a "little bit of country in there," as well as Americana and pop influences, she told Fallon. She also revealed that she and co-writers Linda Perry and Danny Fujikawa (Hudson's fiancé) ended up creating 26 songs in two weeks.

In an interview with "CBS Sunday Morning" last month, Hudson said she's been songwriting "really poorly" for "my whole life," but she'd started writing the tracks on "Glorious" two years ago.

"I guess I wasn't ready for it until now" she said. "I just don't care anymore about what people think, probably. It was never right, whether it was my own stuff or feeling afraid to mess up my movie career – just never felt right until now. I'm just doing it."

It helps that she also has musical talent in her DNA, with The Hudson Brothers' Bill Hudson as her biological father.

"Those Hudson Brothers are crazy-talented musicians and wonderful songwriters. My dad's a great songwriter," she said.

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The "Bride Wars" actor also opened up about being dissuaded from entering the music business a decade ago.

"There was someone who said to me – and it kind of jarred me a little – it was when I was in my early thirties, and they basically said, 'It's done, it's passed. You can't, you're too old,'" she said.

But she ended up not heeding that advice: "No, no one tells me what to do!"