'Desperate Housewives’ Star Is All Grown Up and Celebrating Her Sweet 16 with Sis Demi Lovato

Madison De La Garza celebrated her sweet 16 on Monday, with a little help from her famous sister Demi Lovato.

De La Garza, who played Eva Longoria's daughter Juanita on “Desperate Housewives,” looked every bit the princess in a beautiful tiara and sleeveless silk gown with a sheer skirt.

She celebrated with a vanilla three-tiered Cold Stone Creamery cake decorated with snowflakes, and ice cream in flavors like dark chocolate peppermint.

Madison and Demi did some singing and dancing too, enjoying hits like Fergie's “Fergalicious,” Justin Timberlake's “Rock Your Body,” and, Lovato's song with Luis Fonsi, “Not On You.”

Demi wasn't the only family members there to wish Madison a happy birthday. The teen's mom Dianna De La Garza, father Eddie De La Garza and sister Dallas Lovato were also at the shindig.

After “Desperate Housewives,” De La Garza went on to appear in various projects, including the TV show “Bad Teacher.” She also wrote the screenplay for the short film “Imbalancing Act.”