BTS 4th Muster: Happy Ever After
- Cast: RM, Jin, Suga, j-hope, Jimin
- Duration: 296 minutes
- Genre: Music, Documentary
- Rating: 8.2/10
- Release Date: 2018-10-31
BTS 4th Muster: Happy Ever After was BTS's 4th Muster fan club event. It took place from January 13, 2018 to January 14, 2018 in Seoul, South Korea.
