Watch Miley Cyrus - Endless Summer Vacation (Backyard Sessions) for Free: How to Stream the Movie Online at 123Movies. . Miley Cyrus takes the stage in this must-see, Disney+ music event featuring debut performances of her highly anticipated eighth studio album, "Endless Summer Vacation." The global superstar’s cinematic, one-of-a-kind performances are threaded together with exclusive interviews where she provides insight to her new album and the person she is today.