K-pop dating tips: how do idols hook up in secret? Girls’ Generation’s Sunny and Sandara Park recommend video calls, while Girl’s Day’s Hyeri suggests meeting men through stylists

• In South Korea’s music industry, where agencies like JYP have rules against dating, stars need to get creative
• Lovelyz’ Yoo Ji-ae admitted another member of the girl band once received a signed CD from a male idol – with his number scribbled inside