The cast of “X Rocks” is shown in rehearsal at T-Mobile Arena prior to the opening of the Metal …

The cast of "X Rocks" is shown in rehearsal at T-Mobile Arena prior to the opening of the Metal ...

The cast of “X Rocks” is shown in rehearsal at T-Mobile Arena prior to the opening of the Metallica concert on Monday, Nov. 26, 2018. (Edison Graff)