Celine Dion, Jennifer Lopez, Mariah Carey and the Backstreet Boys are standing firm ... they will all take the stage in Las Vegas despite an ISIS threat to hit the Strip. We contacted various people connected to all 4 acts, and…
TMZ Staff, TMZ
Thu, 05/25/2017 - 1:35am
Celine Dion, Jennifer Lopez, Mariah Carey and the Backstreet Boys are standing firm ... they will all take the stage in Las Vegas despite an ISIS threat to hit the Strip. We contacted various people connected to all 4 acts, and…