“I find it harder to exercise without music [in the gym], it adds rhythm and can set the pace,” Jared Leto tells Apple Music of his Fitness mix. “Music is such a huge part of my life. It helps me stay motivated and energised. But when I’m outside, I do prefer the sound of nature and the silence.” The Thirty Seconds to Mars singer and multi-instrumentalist gets in the mix here with uplifting tracks to turbocharge your workout on any terrain, picking out tracks from Van Halen, Survivor and Beastie Boys, plus “World On Fire” from his band’s sixth studio album, It’s the End of the World but It's a Beautiful Day. “My workout routine varies depending on the time of year and what I’m training for,” adds Leto, whose career in TV and film spans over four decades. “When preparing for a role, it can be more intense and focused on building specific types of strength or stamina. Typically, I rock climb and hike—and when we’re on tour that becomes the main source of exercise.”