03/25/2013 04:02 EDT

Jessica Simpson, Ashlee Simpson Show Off Competing Hairstyles (PHOTOS)

There's nothing more fun than seeing some friendly sibling rivalry, especially when it involves hair!

Sisters Jessca Simpson and Ashlee Simpson wore contrasting outfits (and hairstyles) in North Carolina on March 23, to promote Jessica's clothing line.

Jessica also brought one very important (and super cute) accessory: Her 11-month old daughter, Maxwell!

Ashlee tried to steal the spotlight with an on-trend high bun, while Jessica let her hair down in retro waves.

The sisters were decked out in clothes designed by Jessica; the new mom (who is pregnant with her second child with fiancé Eric Johnson) wore an elegant deep red dress from her Jessica Simpson Maternity line, while Ashlee (also a mom to son Bronx) went for a more edgy look in a painterly cap sleeve dress and accessorized with buckled boots and a leather biker jacket.

Pregnancy the second time around sure makes Jessica Simpson look good. Jessica turned heads in a sexy leopard-print dress on Jay Leno in January and wore a gorgeous purple cocktail dress on "Ellen" earlier this month.

Being a new mom isn't slowing her down either. Simpson is set to star in a NBC sitcom pilot based on her life.

Go Jess!

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