He was sighted this afternoon strolling through and stirring up the once-quiet town of Rhinebeck, N.Y.. Wearing blue jeans and a black shirt, Clinton smiled, shook hands and even took questions about his future son-in-law, Marc Mezvinsky.
"I like him very much, I really do. I admire him. I feel very blessed," the former president said. "Hillary thinks the same way. We think he's fabulous."
He was asked about Rhinebeck.
"We love it here," he said. "Chelsea loves the area, as well."
The town, about two hours from New York City, is Clinton central as friends and family gather to attend Chelsea's rehearsal dinner tonight and nuptials Saturday.
Roughly 100 of the families' closest friends reportedly were invited to tonight's cocktail party and rehearsal dinner. The evening will begin at the Beekman Arms Hotel, with the actual rehearsal dinner taking place at nearby Grassmere Estate.
The couple reportedly has asked guests to wear "country chic or cocktail apparel."
Tonight's rehearsal dinner and tomorrow's wedding are so strict that ABC News has learned all invitees are forbidden to bring cell phones, cameras or blackberries to any event.
But while most people will not get within a miles of tonight's event, or Saturday's wedding, that did not stop the curious residents and out-of-towners from getting in the spirit.
Storefront windows in Rhinebeck displayed signs wishing the soon-to-be-married couple well. Members of the media began lining up to see if they could spot the guests.
Rhinebeck's own mayor knows little about the wedding. Mayor Jim Reardon said he only started to hear rumblings about the Clinton nuptials in June. Two weeks ago, Reardon called up the Secret Service in Albany to get more details. Since the rumors began, he said, he's watched interest in Rhinebeck explode.
"I've had more media requests for interviews and phone calls for interviews, camera appearances in one week than I've had in the three years I've been in office," he said.
Chelsea Clinton's wedding is shaping up to be a lavish, glamorous and expensive affair. The cost has been estimated at anywhere from $3 million to $6 million.
A lot of effort went into keeping it quiet. Guests were invited to an "event" four months ago, but weren't given any details about what it was or where it was until just this week. Hotels were secretly booked and vendors were compelled by the Clinton camp to sign strict confidentiality agreements.
Chelsea tried to avoid the cameras as she jetted around Manhattan in a last-minute wedding rush. True to form for the former first daughter, who has been in the spotlight for much of her life, Chelsea has tried to maintain her privacy throughout her wedding planning. Still photographers and journalists spotted her getting a pedicure, going to the gym, grabbing a frozen yogurt, and picking up some rare books this week.
Hillary Clinton, the secretary of state and mother of the bride, was seen helping too, toting loot from Tiffany's and a garment bag into Chelsea's apartment.
As the day draws near, more and more details are beginning to leak.
Jim Langan, executive editor of the Hudson Valley News, said that on Saturday, the Hudson River is going to be closed for a fireworks display.