Sunny Hill will be dropping their studio album in two parts very soon, but before then, they have dropped the MV for their pre-release track, "Once In Summer"!

They return as a four-member girl group following the�leave of�male member�Janghyun�earlier this year. The ladies bring out their sweet and lovely voices to make this summer even brighter and warmer with the happy-go-lucky song. The lyrics reminisce on the fond memories of a first love, so it's a song that we can all relate to.

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Check it out through the video above, and stay tuned for 'Part A' of their album that will be out sometime in August.