2NE1's "Welcome Back" concert at the Olympic Hall in Olympic Park, Seoul, marked a triumphant return for the iconic K-pop girl group after more than a decade. The electrifying performance on Sunday evening saw all four members - Sandara Park, CL, Park Bom, and Minzy - take to the stage in their signature eclectic outfits, captivating fans with their unique style. The emotionally charged event, which featured hits like "Come Back Home" and "Fire," brought tears to the eyes of many devoted Blackjacks in attendance, showcasing the enduring bond between the group and their fans. The concert showcased 2NE1's evolution over the years, with power-packed performances of classic hits like "Can't Nobody" and "I Am the Best." The event also featured solo acts from CL and a segment of heartfelt ballads, further highlighting the group's versatility and musical prowess. As the concert came to a close, the members expressed their gratitude to fans for their unwavering support and hinted at the possibility of an encore concert, indicating that the group's future endeavors may include more opportunities for fans to relive the nostalgia of a classic 2NE1 show.