If you have been to a Kpop concert in the past you will see a stadium lit up by fans holding up their lightsticks. Lightsticks are a must for Kpop fandoms and are an essential part of any Kpop concert-going experience. Groups incorporate fan participation using the lightsticks at the concerts. Therefore if you don't have one, good luck in trying to participate. Some of the best Kpop lightsticks have been upgraded from older models and now offer much more than LED lights. Some have BlueTooth capability, ultra-cool designs, and some have been designed by the group members themselves. Many have become collector's items and it is difficult to find them online because they sell out very quickly.