 Together with Yoon Jong-shin and his artist Parc Jae-jung, Henry introduced "Snowball Project" – a show which "depicts the musical journey" of Parc Jae-jung and NCT's Mark through a special Naver V app video on Jun 28, 2017.This resulted in a collaboration between the two artists, titled "Lemonade Love", which was eventually released on July 21 as a digital single through SM Entertainment's STATION season 2.Both Henry and Yoon Jong-shin eventually continued the project with the plan to rearrange their other label's composition into new digital singles, with Henry recruiting Red Velvet and Yoon Jong-shin recruiting PERC%NT, Jang Jane and Giant Pink for the project.