United Cube Concert – One (Korean: 유나이티드 큐브 원) was the second domestic concert of South Korean music label Cube Entertainment in 2018. A total of 33 Cube artists performed, including Hyuna, Jo Kwon, BtoB, CLC, Pentagon, Triple H, Lai Kuan-lin, Yoo Seon-ho and (G)I-dle. The concert took place at KINTEX in Seoul with an audience of 8,500 people.

Led by their destiny, four boys who shared the common dream of music met at JYP and debuted as 2AM (which means sensibility of the dawn). Now they stage their most special and charming performances in 3D!