The Zac Brown Band gave away free cruise tickets — worth a staggering $40 million — to more than 37,000 fans on Sunday, calling it “the biggest giveaway in history.” “Tonight we’re gonna do something that even Jimmy would say is crazy,” Zac Brown announced to more than 37,000 fans at the ballpark. Sunday’s concert also made for the Zac Brown Band’s 15th consecutive sold out show. “Super excited, looking forward to it,” Jeff Miner — who attended the Fenway Park concert with his wife — told WJAR. Zac Brown Band fan, Gianna Lemarier, meanwhile, said fans were skeptical at first, telling WHDH, “Everybody kind of goes silent at first.