Perhaps best known in pop culture circles for her MTV reality show more than decade ago, singer and actress Jessica Simpson is actually an accomplished entrepreneur with a billion-dollar fashion empire. Her brand, mostly sold at department stores, includes a line of athletic apparel for women. Now, Simpson is looking to expand into athletic footwear.

This week, Simpson announced a collection of sneakers that will be sold at Macy's and jessicasimpson.comThe Warm Up Collection consists of vibrant colors and patterns on silhouettes seemingly inspired by Nike's Air Flow, Flyknit and Roshe models.

Four models, the Farrahh, Fitt, Fusto and Nessa, are available for $80 pre-orders with expected September 2 shipping.

Jessica Simpson Warm Up Farrahh Python

Jessica Simpson Warm Up Farrahh Rainbow

Jessica Simpson Warm Up Fitt Yellow

Jessica Simpson Warm Up Fitt Purple

Jessica Simpson Warm Up Fitt Black

Jessica Simpson Warm Up Fusto Heather

Jessica Simpson Warm Up Nessa Teal Leopard

Jessica Simpson Sneakers