"Week" (Korean: 월화수목금토일; RR: Wolhwasumokgeumtoil) is a song by South Korean singer Chung Ha.

The song was initially the first single album of the singer, but was later repackaged into Chung Ha's first EP Hands on Me.

It is also a pre-debut single.

The pre-release track "월화수목금토일 (Week)" is a ballad about the emptiness the singer felt after her former group's disbandment.

[1][2] The music video was released on 20 April 2017 on YouTube.