Country singer Willie Nelson, 91, canceled a performance at the Outlaw Music Festival Tour due to health reasons. His social media statement explained he needed to rest for four days on doctor's orders but is expected to recover quickly. No further details on his health were disclosed. Nelson's son Lukas and guests will perform in his absence. The Rock & Roll Hall of Fame inductee recently collaborated with Orville Peck on a duet and released a new album. Known for his allyship with LGBTQ+ community, Nelson's support has been praised. Despite this setback, Nelson's fans are sending him well-wishes for a full recovery as he plans to rejoin the tour soon.