The K-pop industry has seen many debuts and disbandments, but there are groups that have stood the test of time, albeit seeing some member changes.To keep track, we've compiled a list of some of the longest-lasting K-pop groups in the industry as of August 21, 2021.Which is the longest-lasting K-pop group?5) BIGBANGBIGBANG is a 4-member boy group from YG Entertainment. They originally started off as 5, but a member decided to quit in 2019.Left to Right: T.O.P, G-Dragon, Taeyang, DaesungBIGBANG debuted on August 19, 2006 during the YG Family 10th Anniversary concert. The group has been together for 15 years and 2 days. They were named one of the most powerful celebrities in South Korea from 2009 to 2016, by Forbes Korea.4) Brown Eyed GirlsBrown Eyed Girls, or B.E.G., is APOP's 4-member girl group. Surprisingly, the group has faced no member changes from debut to present. View this post on Instagram A post shared by Brown Eyed Girls (@browneyedgirls_official)While several of the K-pop group's members have left their agency APOP, they are still a part of the group and continue to promote under the name. They debuted on March 2, 2006, with the track "Come Closer." They've been together for 15 years, 5 months and 19 days.3) Super JuniorSuper Junior is a popular boy band under SM Entertainment. They started off with 12 members. One more member was added a year later. Currently, the group has 10 idols to its name, with 1 on hiatus. View this post on Instagram A post shared by 우린 슈퍼주니 어! 예요💙 (@superjunior)Despite the rocky line-up changes, the K-pop group has stayed strong and continues to release music. They debuted on November 6, 2005 which makes it 15 years, 9 months and 15 days since they started.2) TVXQTVXQ is another SM Entertainment boy group. They originally had 5 members, but after 3 split off and formed their own group, the group is now a duo. View this post on Instagram A post shared by 동방신기(TVXQ!) Official (@tvxq.official)The two K-pop idols are still active under the TVXQ name to this day. In 2020, they held a live online concert. They made their debut on December 26, 2003, making it 17 years, 7 months and 26 days since the special day.1) SHINHWASHINHWA has been through several agencies, but the members are still together. Not only is it the longest running K-pop group, but they managed to accomplish the feat with no members changes; they debuted as 6 and are still together as 6. View this post on Instagram A post shared by 신화컴퍼니 (@shinhwa_official)Currently, the band are under their own agency named Shinhwa Company, specially established to manage the activities of all the members as well as the group. They've completed 23 years, 3 months and 12 days, as they debuted on May 9, 1998.Related: 5 Indian celebrities who are K-pop fans