Betsey Johnson is known for her outlandish style, so it was little surprise when she threw herself a wild 70th birthday bash on Tuesday night in New York City, the Associated Press reported.

Included in the fun was her gal pal Cyndi Lauper, who belted out "Girls Just Wanna Have Fun" during the celebration, which doubled as a runway show, the AP said.  

From all the models who paraded down the runway slinging confetti, dressed in different decades of Betsey Johnson garments --one of them holding a piglet -- it would be hard to imagine that the 70-year-old designer filed for Chapter 11 bankruptcy protection in May.

But Johnson could use a celebration in her life after she closed her 63 boutiques in 2012; her U.S., Canada and British stores held going-out-of-business sales from May through July.

Steve Madden Ltd. will continue to sell Betsey Johnson products since it owns the Betsey Johnson intellectual property rights, and her lower-priced clothing items will be sold in Macy's and other department stores, ABC News reported.

Johnson's family was on hand for the party, with her daughter Lulu popping out of a faux birthday cake. Her grandchildren watched as the famous designer ran into a cartwheel that ended in a split, as Johnson has been known to do at her shows.

Certain members of the crowd reportedly had to wait over an hour to get in, while some of the invited guests were turned away by the fire marshal since the room Johnson rented on 42nd Street was filled to capacity.

But Johnson wasn't going to let a bad business year get in the way of her birthday fun. She had models holding up glitter-lettered signs while footage dating back to the 1960s, when she was inspired to create her rocker style, was shown on screens through the room, the AP reported. 

The models donned princess-themed clothes, bright and fun for spring, with cute little skirt bottoms that said "cheers" in pink letters.

A little fun fact, Johnson's real birth date is Aug. 10, 1942, but when has she ever been known to fall in line?