Leona Lewis Puts Aside Pop World To Get Her Nails In ‘Cats’

“It was so magical and it was such a spectacle, just the music and the dance, everything was so emotional. I just remember loving it,” she recalled. “After seeing the show, I went to my singing teacher and I went, ‘I want to learn “Memory.’“ So I ended up learning ‘Memory’ when I was like 9.”

More than two decades later, Lewis is leading the Broadway revival of Andrew Lloyd Webber’s still-frisky musical.

In the years since she first encountered “Cats,” Lewis won the TV contest show “X Factor,” earned three Grammy nominations.

Broadway represented a career shake up following a disappointing reception to I Am, her fifth studio album and the first since she left Simon Cowell’s record label.

“It’s a lot of work and it’s very focused and dedicated and you have to literally eat, sleep, live, breathe the theater. That was a whole new challenge for me and something I wanted to take on,” she said. “I feel like it will improve me as a performer – it already has.”

Lewis, 31, is playing Grizabella, a once-elegant but now faded and isolated creature in a shabby coat. It’s a role immortalized by Elaine Paige and Betty Buckley.

“It’s thrilling to see Leona step into the shoes of a character that has inspired thousands of theater fans for almost four decades,” said choreographer Andy Blankenbuehler. “From the start of our work on this production, she has jumped in with such openness and courage.”

Lewis and the cast endured a sort of feline boot camp led by Blankenbuehler, a Tony winner for “Hamilton.”

“We spent two days crawling around as a cat. We were cats. We ate as cats, we were napping as cats, the whole cast was crawling around as cats. So we definitely have that in our body,” she said, laughing.

Lewis, who grew up in London, is enjoying being able to settle down after lots of touring. She likes listening to Sia, Bob Marley to chill out to before going onstage and Major Lazer when she works out. She thinks Audra McDonald is incredible.

She has an apartment overlooking the Hudson River and admires New York’s melting pot. “I love that on one street you can find every single cuisine from around the world. Nowhere else in the world does that,” she said.

The singer’s career was starting slowly with small gigs and uploads to Myspace when she was picked to compete in Season 3 of the British show “X Factor” in 2006. She was working as a personal assistant to a mortgage broker. “He was a frustrated guitarist. He would get his guitar out and I’d sing so we’d not get that much work done.”

After winning the contest, Lewis was signed to Simon Cowell’s Syco Music label and created the smash hit “Bleeding Love.” But she grew frustrated in Cowell’s stable, especially when she was told to scrub plans for a new CD in 2013 and instead do a Christmas album.

Lewis doesn’t slam reality TV contests but says she hasn’t watched any in a long time. “It opened doors up that I don’t know I could have opened myself. So I definitely got a lot of exposure in an amazing way. There’s always a good and a bad side to that, too,” she said.

She might as well take career inspiration from the calmness and dexterity of, well, a cat.

“I’ve had the most amazing things happen. I’ve had not so great things happen. You kind of have to take it in your stride and not let it affect your soul and not let it affect my passion for music.”