(Park Shin-hye's Instagram)

Park Shin-hye spent her birthday Saturday working in Thailand.

The actress uploaded on Instagram a selfie taken next to a field of daffodils, saying she was there for a cosmetics photo shoot.

“Thank you for greeting me at the airport. It was late at night and your being there really surprised me. Thank you,” wrote Park to Thai fans.

By Lim Jeong-yeo (kaylalim@heraldcorp.com)