K18 is bringing its viral Hair Flip Challenge to Grand Central Terminal for a live Guinness World Record™ attempt on Thursday 2/19!

Get ready for a record-breaking moment in the heart of NYC. K18 is taking over Grand Central Terminal with its viral Hair Flip Challenge, inviting commuters, creators, and beauty lovers to help set a Guinness World Record™ for the most hair-flip videos posted to TikTok and Instagram in 24 hours. In partnership with GlamBOT director Cole Walliser, the iconic transit hub becomes a social-first stage celebrating bold style, healthy hair, and unapologetic confidence. Enjoy great hair and limited samples of their iconic Leave In Molecular Repair Hair Mask! 

For each hair flip video posted, K18 will donate $20 to HairToStay, a nonprofit providing low-income cancer patients with financial subsidies to access scalp cooling treatments to reduce hair loss caused by chemotherapy. The moment celebrates movement — and turns it into meaningful action.

Open to the public: 8:30 AM – 4:30 PM

Location: Vanderbilt Hall, Grand Central Terminal, NYC