Leah Remini gets stuck in at Dancing With The Stars rehearsal as she gives her first TV interview since leaving Scientology

By Daily Mail Reporter

PUBLISHED: 20:33 EST, 7 September 2013 | UPDATED: 20:55 EST, 7 September 2013

Leah Remini is proving that she doesn't need Scientology to be happy.

The 43-year-old star looked happy with a job well done as she left rehearsal for Dancing With The Stars at a Los Angeles, California studio on Saturday.

Leah, who wore a matching grey tracksuit and some simple athletic trainers on the day, will appear in the competition's upcoming 17th season.

Trying new things: Leah Remini, who is partnered with Tony Dovolani, leaves dance practice in Los Angeles, California on Saturday

In her first TV interview since cutting ties from the Church Of Scientology, Leah chatted with Ellen DeGeneres on Friday about the punishing DWTS practices.

Though the competition can be a lot of fun, there's one obvious downside: Leah's been hurting in 'places I didn't know could hurt.'

'It's so much harder than I thought, and most people do say that, but it's true,' Leah, best known for her role on The King Of Queens, explained.

She could've been talking about leaving Scientology, which she ditched in July in a highly publicized exit - Leah told People Magazine that she's 'not about to shut up' about the church's transgressions.

Tell all! Leah is reportedly planning on writing a memoir about her life, which will include details about the controversial Church Of Scientology

Seasoned vet: Leah joked to Ellen DeGeneres about potentially breaking her partner Tony Dovolani's wrist

The departure came after she was allegedly punished and put under the church's controversial 'thought modification' process after criticizing Scientology practices and leaders.

Also spotted on Saturday were actor and musician Corbin Bleu, comedian Bill Engvall and professional dancers Emma Slater, Karina Smirnoff and Cheryl Burke.

Emma certainly looked sharp in a pair of skintight, high-waisted black trousers and a retro button-down with paisley accents.

Give us a wave! Professional dancer Emma Slater, who is partnered with funnyman Bill Engvall, flashes a smile on Saturday

BFFs! Bill and Emma pose together at the dance rehearsal

She later chummed it up with Bill and appeared to have changed out her top, donning a fiery red blouse.

Corbin and Karina also flashed smiles as they left rehearsal, with Corbin wearing a tight black tank-top and matching shorts while Karina sported a black shirt and some baggy sweatpants.

Satisfied? Corbin Bleu and pro dancer Karina Smirnoff seem cheery as they leave dance practice

Talented: Corbin shot to prominence as a star of Disney's High School Musical movies, and he has released two albums as a musician

Meanwhile, Bill showed off some of his new moves in the parking lot as he sipped on a sports drink.

He wore a bright blue shirt, matching Cheryl in bringing a splash of colour to the predominantly monochrome slate of outfits.

Cheryl's partner Jack Osbourne also seemed in better spirits after receiving the tragic news of his wife's miscarriage earlier this week.

Dancing With The Stars returns to TV in a new one-night, two-hour format on September 16.

Showoff! Bill Engvall seems confident in his new dance moves

Like a pro: Cheryl Burke, who is partnered with Jack Osbourne, gave a smile as she exited her dance session

Feel better soon: Jack Osbourne wore a gingham-pattern button-down and some comfy jeans on Saturday