Where can you get the hair piece Blake Lively wears at the white party on Gossip Girl?

Blake Lively's hair piece from the white party in Gossip Girl can often be found through online retailers or beauty supply stores that specialize in hair extensions and accessories. Websites like Amazon, eBay, or specialized wig shops may have similar styles. Additionally, you can check out costume or replica shops that focus on iconic TV show fashion. For an exact match, searching for "Gossip Girl white party hair piece" might yield specific sellers or options.