On the December 12th episode of SBS’s “Kim Jung Eun’s Chocolate“, K.Will and SISTAR’s Hyorin stunned the audience with a beautiful cover of Mariah Carey’s ‘Whenever You Call‘.

After the broadcast, clips of their duet performance were uploaded onto various portal sites, and have been receiving hot responses. Some netizens have commented, “The birth of a precious vocal duet” and “A hair-raising live performance.”