On Wednesday night, a stylish crowd, including Georgina Chapman and Dylan Lauren, gathered at the St Regis’ legendary King Cole Bar for the launch of “Jazz Legends at St. Regis,” a new concert series that will feature up-and-coming musicians who are reinventing the jazz genre for a younger, more “global” crowd in the very same space where jazz legends such as Dizzy Gillespie and Duke Ellington once performed. (Bronson Van Wyck transformed the space into an updated version of a ‘20s-style jazz club for the evening.) Jamie Cullum, the 35-year-old British singer-songwriter, took to the stage for opening night. “This is a Sufjan Stevens song with a Nina Simone edge,” Cullum explained, before performing an excellent rendition of “The Seer’s Tower” that felt both nostalgic and modern. “He represents that new, younger, more modern side of jazz,” said St. Regis Vice President Anthony Ingham of Cullum. Next stops for the series include Bal Harbour, Deer Valley, and Istanbul.