VANCOUVER - If the opening ceremonies of the Olympics were like a meticulously organized dinner party, the closing is being billed as something more like a kegger: boisterous, unpredictable and relatively light on decorum.

The big question surrounding this Sunday's bash, then, concerns the guest list: Who's invited?

On Friday, the head of the Vancouver Olympic organizing committee was careful not to tip his hand. John Furlong predicted that the festivities will be young, light-hearted, and would poke fun at Canada.

And he promised they will showcase some "pretty amazing Canadian talent."

"The idea is to have a light-hearted, fun-filled (show), and it's likely at the end of the show -- again, especially if you're not a Canadian -- you will come face to face with people you might have thought were from somewhere else," Furlong said.

So, who might he be talking about?

Well, local crooner Michael Buble is a fairly safe bet.

His latest album, "Crazy Love," hit No. 1 around the world. He's here already, contributing commentary on hockey for Australian TV. And he's associated with manager Bruce Allen, who is serving as headline talent producer for the opening and closing ceremonies, and whose clients Bryan Adams and Anne Murray both factored into the opening bash.

When reached, a spokesperson for Buble declined to comment, citing a non-disclosure agreement.

Another local artist to watch for might be Diana Krall.

The sultry B.C.-born chanteuse matches Buble's international acclaim, having won Grammys and released platinum albums in the United States and Canada. And, like Buble, she's connected: her manager, Sam Feldman, is serving in the same capacity as Allen, and another of Feldman's clients, Nelly Furtado, was involved in the opening ceremony.

Toronto rockers Rush, also members of Feldman's flock, are factoring into the rumour mill, as well. A publicist for the trio cited a non-disclosure agreement when asked to comment on rumours of their involvement.

The third headline talent producer for the show is Dan Fraser of Nettwerk Management, a company whose roster includes Sarah McLachlan (another of the opening ceremonies' headline performers) and k-os, the Toronto hip-hop artist whose possible involvement in the closing has incited whispers on Twitter.

Or how about Nickelback? To the chagrin of some, Canadian rock bands don't get much bigger than the divisive Hanna, Alta., hard-rockers, and frontman Chad Kroeger has been spotted about town over the past week.

So has Avril Lavigne, who has a new album due in June, and who represented Canada during the closing ceremonies of the 2006 Winter Olympics in Turin, Italy.

There are rumours country superstar Shania Twain is in town, and some fans are holding out hope she might make an appearance. Twain carried the Olympic torch through her hometown of Timmins, Ont. And she's also been spotted out and about in Whistler, B.C., this week.

But another of Canada's most popular exports won't be making the trip.

A publicist for Celine Dion has confirmed to The Canadian Press that she won't be in Vancouver for Sunday's festivities. Neither will Joni Mitchell, whose publicist similarly confirmed her non-involvement.

Another thing viewers won't see? Token French content shoehorned in to appease critics who felt the opening ceremonies were too English-centric, Furlong said.

But it so happens that the closing may include more French, regardless.

"We will be delivering the show that we've planned for the past two years, but you will be under no doubt at the end of the show that in respect to the question of French and English, we are a bilingual country and we celebrate it."

David Atkins, executive producer of the ceremonies, told The Canadian Press: "The closing ... is a very different ceremony, and it's allowed us to have a greater content in terms of the French component."

Those who took issue with the sometimes stereotypical view of Canada presented at the opening -- Mounties, mountains and maple leaves, oh my! -- it sounds as though the closing could take a light-hearted approach to some of the same material.

"We will probably poke a bit of fun at ourselves, you will probably come away from the ceremonies knowing a bit more about us than you did if you're not from Canada, and we will probably bust a few Canadian myths," Furlong predicted.

However, there will still be some proper Olympic protocol to interrupt the party.

The athletes will march in, though in an informal fashion this time, the national anthem of Greece will be played, the flame will be extinguished and the Olympic flag will be handed over. Organizers of the 2014 Winter Games in Sochi will also have the chance to make a presentation.

For the athletes, there's no question which ceremony is more fun.

"The closing ceremonies - I've been to four of them, this will be my fifth - it's just celebration," said six-time Olympic medallist Clara Hughes earlier this week.

"Everyone's done. I've been lucky that every Olympics i've gone to, I've felt that I have brought my best, so it's been pure celebration and joy. It's always a good time."

-- With files from Stephanie Levitz in Vancouver.