Years before Spotify even launched, music was a core part of many people’s fitness routines. Now Spotify is expanding into the fitness category with an array of videos and guided workouts, available in the app alongside music, podcasts and audiobooks. Spotify’s new guided workout experiences will include more than 1,400 on-demand workout classes from Peloton instructors like Rebecca Kennedy, Ally Love and Rad Lopez, spanning strength, cardio, yoga and meditation. The Peloton workout videos, which will continue to expand over time, will be available to Spotify Premium subscribers in the U.S. and most other markets. In addition, both Spotify free and Premium users will have access to dozens of curated playlists as well as content from established wellness creators.…