The glitterati stepped out to the Four Seasons for the debut of photographer extraordinaire Patrick McMullan's fifth book, Kiss Kiss. His new tome captures more than 1,000 images of celebrities and socialites puckering up throughout three decades, with an intro by gossip guru Liz Smith. The glossies include everything from ex-couple Nick Lachey and Jessica Simpson locking lips to a friendly side-smooch between Elton John and Elizabeth Hurley.

The seductive soiree even included a kissing booth, provided by host Maybelline. A-listers spotted at the smoochy affair: Denise Rich, Carolina Herrera, Ivana Trump and Rossano Rubicondi, Patrick McDonald, Anne Slater, Amy Fine Collins, Linda Wells, Tinsley Mortimer, Richard Meier, Robert Verdi, and Troy Surratt.

A throng of lip-locked lovelies!

To order Patrick's book, check out www.patrickmcmullan.com.