Some have resembled a dance party, with K-pop tunes blasting as participants leap around joyfully, waving colorful glow sticks and LED candles. When the hit song "Whiplash" by K-pop girl group ...

allowing for a captivating glow during any concert - and even has the K-pop group's name written across it. SEVENTEEN now has three versions of their light stick with the latest one evolving from ...