FOX BUSINESS: Fanatics CEO Michael Rubin brings star-studded Merch Madness giveaway to underserved kids across US

The children at Frederick Douglass Academy in West Harlem, New York had no clue what they were in store for on their last day of school Tuesday. 

In fact, kids around the country were in awe when they learned about the massive sports merchandise giveaway Fanatics CEO Michael Rubin had put together. The athletes and celebrities he brought with him to support the cause helped with the shock factor, too. 

Rubin’s inaugural Merch Madness Fan Gear Giveaway event launched via stadium sites, bus drops and more throughout the U.S. and nine other countries, becoming the largest one-day charitable merchandise giveaway ever.  

More than 300,000 pieces of licensed apparel — hats, jerseys, hoodies and much more — were given to an estimated 100,000 underserved families, an initiative that Rubin knew he could rally some of his closest friends in sports and entertainment to take part in. 

"30 cities, stadiums around the country –—the Patriots’ stadium, the Sixers’ stadium, Raiders’ stadium," he told Fox News Digital in Harlem, the first of his three stops Tuesday for the event. He was heading to Boston after his short stay in New York followed by Philadelphia…