7G! YAK (miracle yak) is an energetic rock band from Chengdu, Sichuan province. 7G is a homophone for "miracle" in Chinese, representing the future and trend. YAK means yak, representing nature and wild nature. The switch between the nuclear voice and the clearing voice, the huge contrast between the appearance and the inner, through the music to encourage and comfort more people, bring the audience a new sensory stimulation, just like in the future world, both dangerous and challenging.