Miley Cyrus shows off toned torso and lean legs getting into exercise gear alongside celebrity trainer Mari Winsor at LA walk fighting ALS

Miley Cyrus frequently campaigns for The Happy Hippie Foundation, which she founded to raise money and awareness for homeless youth, LGBTQ youth, and other vulnerable populations.

So it's no surprise that the star was spotted front and center on Sunday at the 13th Annual LA County Walk to Defeat ALS, supporting her trainer Mari Winsor.

The 22-year-old donned a sweet, hand-decorated T-shirt that read 'I heart Mari,' and was even spotted onstage as the star - credited with popularizing Pilates - led the warm-up for the day's events.

Showing her support: Miley Cyrus was right by her trainer Mari Winsor's side as she hit Exposition Park in Los Angeles on Sunday for the 13th Annual LA County Walk to Defeat ALS

Showing her support: Miley Cyrus was right by her trainer Mari Winsor's side as she hit Exposition Park in Los Angeles on Sunday for the 13th Annual LA County Walk to Defeat ALS

Miley wore a fitted, short-sleeved white T-shirt with colorful embellishments, which showed a bit of the singer's taut stomach.

She coupled the team shirt with a pair of form-fitting galaxy patterned leggings, that highlighted her toned pins.

The former Disney Channel star dressed comfortably for the walk, finishing off her look with a pair of pink and blue Nike sneakers.

Colorful: Miley sported a sweet, decorated T-shirt showing her support for Mari - as it read 'I heart Mari' - and showed off her unique sense of style with galaxy leggings and a giant, big bow
Colorful: Miley sported a sweet, decorated T-shirt showing her support for Mari - as it read 'I heart Mari' - and showed off her unique sense of style with galaxy leggings and a giant, big bow

Colorful: Miley sported a sweet, decorated T-shirt showing her support for Mari - as it read 'I heart Mari' - and showed off her unique sense of style with galaxy leggings and a giant, big bow 

Leading the way: The Wrecking Ball singer joined Mari onstage as the Pilates instructor led the warm-up for the event

Leading the way: The Wrecking Ball singer joined Mari onstage as the Pilates instructor led the warm-up for the event

She accessorized with a pair of dangling, pink earrings in the shape of flowers, and wore a large, pink bow in her hair, which was pulled back into a ponytail.

The recent MTV Video Music Awards host also sported a bright pink lipstick, and at times hid her eyes behind a pair of black and white patterned sunglasses.

She sported a wide grin throughout the event, and seemed to be enjoying herself as she pumped up the crowd during the day's warm-up.

Eye-catching: The former Disney Channel star accessorized with a pair of playful, dangling pink flower earrings, and wore her blonde tresses pulled back into a ponytail 

Eye-catching: The former Disney Channel star accessorized with a pair of playful, dangling pink flower earrings, and wore her blonde tresses pulled back into a ponytail 

Showing some love: Miley planted a kiss on Mari's cheek as the fitness expert took center stage ahead of the Los Angeles walk on Saturday

Showing some love: Miley planted a kiss on Mari's cheek as the fitness expert took center stage ahead of the Los Angeles walk on Saturday

Miley was also spotted posing alongside Mari, who the star was there to support as part of 'Team Winsor Pilates.'

She wore a long-sleeved black T-shirt with the sleeves rolled up, sported underneath a fitted white event T-shirt.

She coupled those with a pair of loose-fitting black sweatpants as well as black and grey Nike sneakers, and wore her blonde tresses styled straight. 

Can't hide her smile! The blonde beauty looked thrilled to be supporting her friend and trainer, Mari

Can't hide her smile! The blonde beauty looked thrilled to be supporting her friend and trainer, Mari

Follow her lead! Miley looked the picture of health as she showed off her toned figure while demonstrating the exercise moves onstage on Sunday

Follow her lead! Miley looked the picture of health as she showed off her toned figure while demonstrating the exercise moves onstage on Sunday

Mari, who has also trained Emma Stone, Dakota Johnson, and Marisa Tomei, was recently diagnosed with amyotrophic lateral sclerosis (ALS) - often referred to as Lou Gehrig's Disease. 

It is a progressive, fatal neuromuscular disease that slowly robs the body of its ability to walk, speak, swallow, and breathe.

On her team page, Mari opened up about her diagnosis, admitting she was 'absolutely shocked' when she found out.

Stylish: At times Miley hid her eyes behind a pair of chic, black and white patterned sunglasses 

Stylish: At times Miley hid her eyes behind a pair of chic, black and white patterned sunglasses 

Her signature move: The singer could be seen sticking out her tongue in a cheeky smile as she posed before beginning the 2-kilometer walk

Her signature move: The singer could be seen sticking out her tongue in a cheeky smile as she posed before beginning the 2-kilometer walk

'Just about the same time people across the world started throwing buckets of ice water over their heads, I was diagnosed with ALS. At first I thought - how could this be happening to me?' she said.

Mari continued: 'My life has been devoted to health and fitness. I have shared my ‘fountain of youth’ secret, Winsor Pilates, with my clients in Los Angeles as well as with those worldwide.'

However, the fitness expert later shared: 'Now that I know what it is, I can step up and fight with everything I have.'  

Ready to go: Miley kept close to Mari - who was recently diagnosed with ALS - as Team Winsor Pilates prepared to begin the walk

Ready to go: Miley kept close to Mari - who was recently diagnosed with ALS - as Team Winsor Pilates prepared to begin the walk

Following the lively warm-up - led by Mari - she and her team, including Miley, headed out for the walk, which took place at Exposition Park in Los Angeles. 

Meanwhile, Miley recently announced a tour for her latest album - Miley Cyrus & Her Dead Petz - which she dropped as a surprise following her hosting of the 2015 MTV VMAs.

She will next perform at the Riviera Theatre in Chicago on November 19.   

Keeping busy: The performer recently announced she would be doing a short tour for her new album Miley Cyrus & Her Dead Petz - which she dropped as a surprise following her hosting of the 2015 MTV VMAs

Keeping busy: The performer recently announced she would be doing a short tour for her new album Miley Cyrus & Her Dead Petz - which she dropped as a surprise following her hosting of the 2015 MTV VMAs

 

 

 

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