Now in its 20th season, Holiday Express is a traveling Christmas party with more than 50 musicians and singers on the stage, playing everything from “White Christmas” to “You’re A Mean One Mr. Grinch” (with the Grinch himself in attendance) to Chuck Berry’s “Run, Run Rudolph,” the annual benefit concert is an always-sold-out season tradition in itself. Holiday Express will be collecting food donations for St. John’s Soup Kitchen in Newark.