Cai Entertainment[http://www.yonhapnews.co.kr/bulletin/2018/11/09/0200000000AKR20181109118500005.HTML 데뷔 15주년 채연 "아직 안죽었네, 섹시하단 말 듣고싶죠"]A9 Media[https://www.allkpop.com/article/2016/10/sexy-singer-chaeyeon-signs-new-contract-with-a9-media-home-to-well-known-comedians Sexy singer Chaeyeon signs new contract with A9 Media, home to well known comedians]