Heart's Ann Wilson, 73, Addresses Aging and Body Acceptance: 'Everyone Is Allowed to Be Sexy and Powerful' (Exclusive)

The music powerhouse is headlining the 6th annual Women Who Rock Benefit Concert to support women's health

Ann Wilson has been an unstoppable force for five decades.

The music legend, 73, who rose to fame in the '70s with her band Heart — the first female-fronted rock group — has been on a solo tour since July and just released her latest solo album, Another Door.

Speaking with PEOPLE ahead of her headlining gig on Saturday for the 6th annual Women Who Rock Benefit Concert presented by Gibson Gives, Wilson describes how age — and size — is just a number.

"The whole idea is everyone is allowed to be sexy and be powerful no matter what shape you're in," the "This Is Now" singer tells PEOPLE, acknowledging today's more accepting society. "I think there's some pretty good movement in certain areas about that — aging and body acceptance and all that."

Related: Heart's Ann Wilson Does Vocal Warmups to Disturbed, Elton John on Tour: 'It Pays Off' (Exclusive)

Wilson has long been vocal about being bullied for her body size since childhood. She struggled with her weight — and addiction — in the '80s and beyond.

Now on the road with her band Tripsitter into 2024, she says her "stamina" this time around has been better than ever. She also credits her youthful energy to having a grip over her alcohol use these days.

"I'm not 100% sober. Usually, I have a glass of white wine after the show, but that's all it's down to now," she shares of her more balanced lifestyle. "I got a really good handle on it. It's actually really good and it does help me with stamina and I do a really good warmup."

Related: Barbra Streisand Says It's 'Unacceptable' that Women Don't Receive High-Quality Heart Health Care

After dozens of shows so far this year, Wilson will be rocking Stage AE in Pittsburgh for a good cause on Saturday, and Women Who Rock's founder Melinda Colaizzi is excited to give her a warm welcome.

"It's an incredible honor to have Ann take the stage at this year's Women Who Rock Benefit Concert and through the power of her music, impact women's lives and women's health for generations to come," Colaizzi tells PEOPLE of the event, which supports Magee-Womens Research Institute & Foundation (MWRIF).

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Mike Annichine, CEO of MWRIF, the largest research institute in the U.S. devoted exclusively to women's health research, shares similar sentiments with PEOPLE.

"It's so great to have a big star like Ann Wilson realize the importance of supporting women's health research and amplify our voice across the globe," Annichine says. "That enables us to improve our impact in the lives of women and babies everywhere."

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Read the original article on People.