Hello Venus (헬로비너스) is a South Korean girl group formed by Pledis Entertainment and Fantagio in 2012. The group consists of Alice (앨리스), Nara (나라), Lime (라임), Seoyoung (서영), Yooyoung (유영) and Yeoreum (여름). They were After School and NU'EST's sister group while under Pledis Entertainment, and debuted on May 9, 2012. On July 31st, 2014, it was revealed that Yoo Ara (유아라) and Yoonjo (윤조) were leaving the group following a mutual agreement between Pledis Entertainment and Fantagio. Hello Venus then continued to promote as a four member group before adding two new members.
On May 9, 2012, Hello Venus debuted their mini-album Venus. Venus features four track in all, with Venus serving as the promotional track. Promotions for Venus began on May 10, 2012, on M! Countdown. On July 4, 2012, the group released 파도처럼, off the digital album 파도처럼. On December 12, 2012, Hello Venus made their first complete comeback with their mini-album 오늘 뭐해? with the title track 오늘 뭐해?.