Singer Ha Sung-woon will be the OST singer for tvN's Saturday-Sunday drama 'Love Next Door'.

Ha Sung-woon will release the OST 'What are we' on major music streaming sites at 6 PM on the 1st of next month. He plans to captivate viewers with his sweet vocals.

'What are we' is a warm song. It's about a childhood friend who was always by my side and shared a dark history. It contains the feelings of feeling the world through each other.

This song makes the relationship between Choi Seung-hyo (played by Jung Hae-in) and Bae Seok-ryu (played by Jung So-min) even more lovely. Ha Sung-woon's emotional voice maximizes the immersion in the work.

It was previously inserted into the highlight trailer and garnered much attention. The gradually building harmony unfolded beautifully. It received favorable reviews for Ha Sung-woon's unique tone.

The official said, "It was completed with Ha Sung-woon's sweet voice. It will dramatically decorate the lively and cheerful true friend romance between Jung Hae-in and Jung So-min." Meanwhile, 'Love Next Door' airs every Saturday and Sunday at 9:20 p.m.