By Mar 05, 2021 K-pop solo artist Park Ji Hoon is back with a new single in collaboration with R&B artist Lee Hi, and the track has seen its way up on both domestic and international music charts. Park Ji Hoon Returns with Collaboration Song "Call U Up" featuring Lee Hi Park Ji Hoon becomes the third Korean act to collaborate with UNIVERSE, the latest global fandom platform, to release a new song. Titled "Call U Up," the track features the lovely female R&B soloist Lee Hi. The first two singles that were launched through the app are IZ*ONE's "D-D-DANCE" in January and Rain and Jo Sumi's "Guardian" in February.