David has come full circle, from contestant to season one winner to this year's HGTV Star host and mentor.

When he's not on Design Star, David hosts White Room Challenge and the hit show Color Splash, now in its eleventh season. Get his tips on how to re-create the colorful, vibrant rooms you see on the show.

In her hometown of Dallas, Donna is widely known as "The Queen of Bling" and operates a successful designer boutique, That's Haute, in the Dallas/Fort Worth area. An interior designer since the 1980s, she also chronicles her design process on HGTV's Donna Decorates Dallas.

On the show, Donna works with her two daughters, Tiffany and Ashley, to create traditional-yet-unique interiors, like this ornate living room.