Lewis Capaldi has started a health kick. The 25-year-old singer is reportedly making a concerted effort to get in shape, and he’s even started to do an intense workout on a Peloton exercise bike before taking to the stage. A source told The Sun on Sunday newspaper’s Bizarre column: “Lewis loves getting the blood pumping before going on stage and has taken the Peloton on the road quite a few times now. He loves it.” By contrast, Yungblud recently claimed that he and Lewis create “carnage” whenever they’re together on nights out. The 24-year-old singer explained that they love going on boozy nig…