This year's tour by the rock act famous for turning Christmas music into arena rock fodder marks the return of the Lost Christmas Eve, an earlier concert theme that the band will bring back to the road for the first time in more than 10 years. As always, there will be pyrotechnics and lasers, and a second set will feature TSO favorites. The group comes to the Rocket Mortgage FieldHouse today for performances at 3 and 7:30 p.m.