Jessica Talks 'Proudest Moment' on 'Fashion Star'

Although Jessica Simpson has played many roles in her career -- singer, actress, designer, mommy-to-be -- Jessica gives some insight into her proudest moment as a designer in this exclusive clip from tonight's Fashion Star.

"One of my proudest moments as a designer was having my own windows [window displays] at Macy's," she reveals. "I think it's really important when you're showing in a window to have a concept -- and that concept has to be something unique, something that will make everyone walk into that store."

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Her advice to designer Ross Bennett?

"Keep it Southern!"

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Check out the video to hear more of Jessica's words of wisdom. Fashion Star airs tonight, April 10, at 10 p.m. on NBC.