Yerin and Song I Han are the voices behind "All I Need is You" for the 'The Witch Store Reopening' OST.

The music video follows Lee Hae Na (Jung Ye Rin) and Kim Yong Hee (Han Ji Ho) as they join closer together. "All I Need is You" is a sweet, romantic track about being able to do anything with someone by your side.

Listen to Yerin and Song I Han's "All I Need is You" above! Have you been watching 'The Witch Store Reopening'?