Ṣaaju ki o to darapọ mọ Playback, Woolim lo ọdun mẹta gẹgẹbi olukọni labẹ JYP Entertainment. O nigbamii dide si olokiki lẹhin fidio ti ifarahan rẹ lori ifihan orin ohun ijinlẹ Mnet's I Can See Your Voice, nibi ti o ti ṣe Ariana Grande's <unk>Problem,<unk> lọ viral. Playback tu awo-orin alakọbẹrẹ alakọbẹrẹ ti ara wọn silẹ Playback ati orin akọle rẹ ti orukọ kanna ni Oṣu Karun ọjọ 25, Ọdun 2015.
Ìṣòro