X-Factor/ Nhân tố bí ẩn
X-Factor/ Nhân tố bí ẩn is the Vietnamese version of The X Factor, a show originating from the United Kingdom. It is a television music talent show for aspiring pop singers drawn from public auditions. Based on the original UK show, and an addition to the X Factor franchise, the series found new singing talent (solo artists and groups ages 12 and over), drawn from public auditions, and they competed against each other for votes. The winner was determined by the show's viewers via telephone, the Internet, and SMS text voting, and was awarded a recording contract and 500 million VND.