As an actress, So Yi Hyun�has her own share of kiss scenes, but she picked 2PM's Taecyeon as the most 'professional' partner she's had in her career.

So Yi Hyun and Taecyeon were guests on tvN's 'Taxi' to promote their new drama 'Who Are You'. They revealed that they actually had to film a kiss scene almost as soon as they met. So Yi Hyun said that when she had her kiss scene with Yonghwa�and Kim Hyung Jun, they were incredibly nervous, which made her more nervous in turn.

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However, Taecyeon was so professional and natural at it that after their kiss scene, she just felt, "What was that?". Taecyeon revealed that he didn't really have a choice because the concept of the kiss was that they were lovers who'd dated for a while.

'Who Are You' starts airing on July 29 through tvN!