Stepping out to support her family, Lindsay Lohan headed to her younger sister's first fashion show in New York City on Wednesday (September 4).

Looking perfect for the theme of the event, "Saints of the Zodiac," LiLo sported a black dress with a gold headpiece as she made her way inside to check out the duds.

As for the show, this was Ali Lohan's debut strutting down the runway for Wendy Nichol's Fall 2013 fashion show during fashion week in the Big Apple.

Although she was out and about at a social happening, Miss Lohan made sure to stay on track with her sobriety as she carried around a Sprite bottle to quench her thirst.