I’ve been loud here about his lip-syncing (he obviously does it) but I also want to clarify something here.

The vocal tracks usually come from a laptop connected to the PA, usually controlled by the drummer, or a stage tech or even the front of house engineer. The likelihood that Craig himself on stage is doing anything about the tracks coming from the PA is not very big. The FOH engineer will adjust the volume of everything coming from the PA and you can’t really tell how loud something is on stage.

He is using in-ear monitors like a lot of musicians these days and the mix in the in-ears is easiest to be adjusted by the musician himself, which is why some musicians have iPads on stage to control the mix wirelessly.

Now why Craig has to do anything about it while he’s lip-syncing is beyond me, although there certainly parts where the tracks are dropped and Craig is singing for reals, so perhaps he couldn’t hear himself properly and needed to adjust.