TORONTO -- It was one giant Halloween party last night at SkyDome with decorations, an oversized inflatable pumpkin and witch, two dance floors, and plenty of costumed trick-or-treaters. And let's not forget the guest of honor -- Cher. The occasion, other than it being Oct. 31, was the final North American date of Cher's Living Proof/Farewell Tour. I know. I know. The 57-year-old dance-pop diva has said goodbye in Toronto before. Twice, in fact. First, when she launched her farewell trek in June 2002 at the Air Canada Centre after rehearsing at Maple Leaf Gardens for a week. And a second time, five months later, when she returned to the same venue. But last night's show, Cher's third visit to T.O., in front of a sold-out crowd of 25,000 at SkyDome, was really and truly the final North American stop on her goodbye jaunt -- her 200th show, in fact. "Our first show was in Toronto and our last show is in Toronto," said Cher to big cheers. Still she has plans to play two Las Vegas shows not associated with the tour at the MGM Grand the first week of January and may also take her farewell jaunt to Europe and Australia next year. Last night, though, it was so long, T.O. Like her two previous shows, Cher descended onto the stage from the ceiling via a giant gold chandelier singing U2's I Still Haven't Found What I'm Looking For. This time, however, she was wearing a special Halloween costume -- a witch's hat and cape -- designed by her longtime collaborator Bob Mackie. They eventually came off to exhibit a skin-revealing catsuit with a spider over one breast. "Happy Halloween!" said Cher. "And I guess we're all brothers and sisters under the skin -- under the drag." The pop diva was in a chatty, catty mood before unveiling the rest of her 85-minute show. She spoke of her decision to leave touring while she was still able to sing and dance, and look good while doing both. "It's better to go when you can still do stuff," said Cher. "If this was one of those bullsh-- farewell concerts, I would come back and my boobs would be down to my kneecaps and I would be toothless and singing I Got You Babe. So we decided this was it, with J.Lo, and Britney and all those girls coming up. So welcome to the Cher show on earth. And you girls that are coming up -- follow this, you bitches!" Cher also joked about the only mishap in the 200 shows, which happened in Cleveland. "The chandelier came down and I didn't," said Cher, who said her thoughts, while she was stranded four storeys up in the air, turned to a Depends commercial. "I had my legs crossed. I thought, 'I don't care if I die but I'm not peeing on my outfit.' " Otherwise, Cher's retrospective show , which spanned her four decades in the business, remained virtually unchanged from its last two appearances in T.O. For sheer spectacle there was nothing else that came close to it in the last couple of years -- with a gigantic stage dominated by five video screens, two stair-cases and large amber lights. Not to mention a mechanical elephant, eight dancers/gymnasts and a seven-piece band. And, of course, Cher's endless costume and wig changes and clip after clip of TV appearances and her various roles in movies like Silkwood, Mask and Moonstruck to allow those transformations. Opening last night were three disco acts -- Sister Sledge (We Are Family), Thelma Houston (Don't Leave Me This Way) and The Village People (Macho Man, In The Navy, and YMCA), who each delivered enthusiastically received mini-sets. SETLIST I Still Haven't Found What I'm Looking For (This Is) A Song For The Lonely All Or Nothing I Found Someone Bang Bang All I Really Want To Do Half-Breed Gypsies, Tramps & Thieves Dark Lady Take Me Home After All Shoop Shoop (It's In His Kiss) Strong Enough If I Could Turn Back Time ENCORE Believe (More on Cher.)