Lee Sang Gon (from Noel), Han Seung Yeon (from Kara) – From Now
From YT :
The duet song ‘From now’ of Lee Sang Gon, the member of Noel, and Han Seung Yeon of KARA is a sad and gentle pop ballad song singing ‘a couple who realized the love after a long friendship promise not to be parted but to care each other with love since they’ve been just around each other so hardly.’