K-pop singers and siblings Sandara Park and Thunder were spotted Tuesday at Seoul Fashion Week, a weeklong festival hosted by the Seoul Metropolitan Government.

Sandara Park, who is a member of the feisty K-pop quartet 2NE1, and Thunder, a former member of boy group MBLAQ, attended unisex brand KYE's evening show.

Sandara Park (right), a member of K-pop quartet 2NE1, with brother Thunder, a former member of boy group MBLAQ. (OSEN)

Sandara, 30, wore a black silver-studded mini dress under a navy-and-beige coat.

Meanwhile, Thunder, 24, wore a check gray jacket over a black shirt and white pants.

The former MBLAQ member is currently venturing into an acting career and will play a supporting role in the upcoming MBC weekend drama "Let the Girl Cry," which begins airing in April.

Seoul Fashion Week, a bi-annual festival showcasing top Korean fashion brands organized by Seoul Design Foundation, concludes Wednesday.

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By Yoon Sarah (sarah356@heraldcorp.com)