Big colorful butterflies hanging from the ceiling. Pink, purple and green trees. A model dressed as a fairy, on a swing.

Jennifer Lopez said her new young contemporary line was "fantasy — classic inspiration but with a new, kind of funky spin," so she turned the setting of her JustSweet show Tuesday night at New York Fashion Week into a fairy tale.

Models pranced down a silver sparkling runway wearing colors called pixie dust, magic mint and pirate pink. The clothes were sparkling, too, ranging from a sweater dress with thick, sparkling, colorful, diagonal stripes to denim boy shorts with a sparkling brown hoodie.

Her outfits alternated between sophisticated — lots of minidresses — and casual — a pair of skinnies with a cargo green graphic T-shirt. She incorporated her signature one-shoulder look, but didn't go overboard, along with bell sleeves and cropped jackets to add chic to all that trendiness.

Lopez, 37, said she developed JustSweet to fill the void between J.Lo, her denim and T-shirt urban wear line, and Sweetface, a high-fashion, higher-priced line. She wanted to do something in the middle. All the pieces range from $49 to $99. She said she designed the line for the young at heart.

"Girls who are young who are going to wear it are going to feel sophisticated in it because it does have a chic kind of feeling to it," she said. "But people who are older who wear it are going to feel young, flirty and fun. It really has a nice mix."

The actress-singer, who performed at Fashion Rocks on Thursday, said she's not worried about whether she is taken seriously as a designer.

"I'm not looking for the credibility," she said. "I'm looking to make clothes that every woman can wear."