Lenny Kravitz can't get leather pants off his mind, even at the gym.

After all, the "Fly Away" singer shared insight into his decision to wear the not-so-practical article of clothing while working out.

"I perform onstage in leather, denim, whatever, so those are the pants I wear to train," Kravitz told Men's Health in an interview published July 14. "It also means I can fit in a workout anytime, anywhere."

Instead of using a fitness watch to track his workouts, the Hunger Games alum said he uses his 28-inch waist size as a reference.

"I can gauge everything by how I'm in my pants," he added. "If my pants are a little tight, I know I'm getting outta' shape. My friend Denzel Washington gave me this phrase, 'The pants don't lie, the pants don't lie.'" 

Although the 62-year-old—who shares daughter Zoë Kravitz, 37, with ex-wife Lisa Bonet—is happy with how he looks, he does sometimes feel insecure about his leather-concealed legs.

"I don't mean that to sound like I'm into myself, but I've put in the work," he explained. "I feel really good. But I gotta fill out my legs a little bit." 

Fans, however, couldn't get Kravitz out of their minds after he first shared a clip of himself in April 2024 working out in leather pants, a mesh shirt and wraparound sunglasses.

"Thank God for today!" he had captioned the Instagram clip, in which he was lifting weights with a personal trainer. "Grateful. Never been better. There are no shortcuts, so seize your day. It is all possible. Love!"

He did previously clarify that wearing jeans or leather pants is only for workouts that don't include cardio.

"If I'm doing cardio, obviously I'm going to wear sweats because I'm going to be sweating all over the place," Kravitz told Variety after the video's release. "But if I'm lifting weights, I don't sweat so much."

Despite the eyebrow-raising fashion choice, he emphasized that his routines have continued to harness the results he's looking for.

"My trainer knows what he's doing," Kravitz added. "I know my body and what my body does and what it can do and how it feels and it's all good. I trained with elite athletes, I trained with football players, NFL and NBA stars. I trained with MLB stars, wrestlers, boxers. I've played with them all."

While Kravitz is busy dancin' til dawn in his leather pants, keep reading for more celebrity workout routines.

Eight months after welcoming her daughter Matilda with Tom Pelphrey, Kaley noted why she loves doing treadmill workouts amid her postpartum fitness journey.

"Putting that incline up is so good for your muscles, and for your circulation," she told Today.com in an interview published Nov. 22. "I'll also walk backward, which is amazing for your butt and legs. It pretty much works everything."

After having a transformative year in 2023, Becky revealed how fitness played a major role. "I know at the end of the day who benefits from a healthier me the most—myself," she told E! News. "Eventually, if you dedicate yourself to it, you will have lived your life longer with this habit than you ever did without it. At least, that's the way I like to think about it."

Her go-to workouts? "If it's a home work out, if it's stretch, if it's going outside for a walk—I try to be as consistent as I can be."

The Grammy winner explained how moving to New York City helped kickstart her health and fitness journey. "Walking in the city is quite the workout," Kelly told People in an interview published Jan. 3. "And I'm really into infrared saunas right now. And I just got a cold plunge because everybody wore me down."

 Julianne told E! News the exercise she always blocks out time for when she has a jam-packed schedule.

"I know that I can walk around the hills with my dog," the Dancing With the Stars said. "That's key because I have to get her out, too. But movement in general, whether it's 10 minutes or five minutes of something, I have to move my body."

And when she has more time to break a sweat, she added, "Whether it's a Kinrgy class or doing Pilates or yoga, the fact that we get to combine all of those modalities is my favorite because I love versatility."

"I always move, even for a few minutes each day. Sometimes I'll go into a room, turn up the music and just dance. It's a great way to let loose and feel great."

The record producer opened up about his love for golfing and how it's helped him slim down.

"I do it every day and I get a chance to sit on the golf cart or walking about to answer an email or a call and handle my business," he told Us Weekly in an interview published Sept. 20. "It's so much [more] pleasurable, meaning [being around] the nature, the sun. It cleanses me."

"Honestly, my favorite way to break a sweat right now is playing VR. We got a virtual reality headset right as everything was shutting down and it's been AMAZING during quarantine. There are so many games that make you work up a sweat and it's so awesome. I am genuinely so sore after I play."

"Under normal circumstances it's going to the gym, but right now I'm taking online classes with my Pilates instructor Britni Lariviere. I'm also trying to jump rope—2,000 strokes each day."

"Family bike rides are big for us right now and I always try to carve out thirty minutes for pilates with Andrea Rodgers and foam rolling with Lauren Roxburgh."

"Running and listening to music. The best outlet I've found these last few months being stuck in the house! I feel so great and pumped up after."

"My favorite way to break a sweat is mix of sex, PRx Performance, hiking, biking."

"By connecting with my audience and motivating them through my Brooke Burke Body fitness app! I've been live streaming on the app as well as on my Instagram since the beginning of quarantine in an effort to make fitness fun and innovative. I especially love walking my viewers through total body cardio parties, which is when I crank up the music, let them find their rhythm and let the booty burn. Cardio kicks up your heart rate, so if you're not sweating, you're not working out hard enough!"

"I have been doing a lot of Sculpt, Cardio Boxing and Yoga Classes on the obé Fitness App and virtual classes with Pilates By Amanda. If I don't have a lot of time, I will do Lauren Gores' express workouts on her Instagram."

"During lockdown it's yoga under my own direction. I can go onto so many different tangents and by the time I am done it is often two hours."

"My trainer, Amoila Cesar, gets lots of results out of me by appealing to my 'no quit,' competitive side. He yells and I love it. During quarantine, I got my fix by doing his 6 Weeks of THE WORK on Beachbody on Demand. I also love a rigorous barre class and need daily yoga."

"I've been doing a lot of dancing in my apartment. I'll turn on some music and just go. Sometimes it's more structured, sometimes it's interpretive, sometimes I twerk. Also hiking!"

"My go-to work out is P.Volve, I've gone to their classes for years and now I stream them at home. I try and workout at least 3 to 4 times a week even if its for 30 minutes. Its all about strengthening and elongating your muscles. It's my favorite!"