Red Velvet's Kang Seulgi did not expect to get a surprise birthday message.

On Wednesday, Feb. 10, the Pringles UK official Twitter account shared a birthday graphic with Seulgi's name on a Pringles can.

"Many happy returns to one of our biggest fans… #HappySeulgiDay," Pringles UK wrote on Twitter.

Pringles UK tweeted the birthday greeting after a photo of Seulgi smiling and holding a can of the chips circulated on social media. 

Meanwhile, on Jan. 29, the members of Red Velvet were officially appointed as ambassadors for Red Cross Youth, where they will promote the importance of being great samaritan to elementary, high school, and college students.