Oh, it's nothing big. Just some UFC fighters hanging out on top of Radio City Music Hall's marquee in New York City. It's totally normal for Pat Barry, Josh Koscheck, Nate Diaz, Jim Miller, Johny Hendricks, Lavar Johnson and Alan Belcher to put on matching t-shirts and stand around on top of New York icons. After this*, they went to the top of the Empire State Building, went shopping at Macy's, and ate a hot dog from a street vendor. They didn't allow UFC president Dana White on the rest of their adventure because he wasn't wearing a matching shirt.
*OK, nothing from the asterisk on actually happened, but the world would be a better place if it did.