The Hella Mega Tour is the co-headlining tour by American rock bands Green Day, Fall Out Boy, and Weezer. The tour includes dates from March to August 2020.

A total of forty-four tour shows, played over five legs in twenty-two countries, have been announced. All three bands will perform at 29 shows, Green Day and Weezer will perform at an additional three, and Green Day alone will perform at an additional twelve.

The venues consist of indoor and outdoor arenas, exhibition halls, and other outdoor venues.