South Korean singer Yang Hee-eun made a surprise appearance at the massive demonstration in Seoul on Saturday.

The 64-year-old singer braved the cold wind and wet snow and encouraged the 1.6 million-strong crowd in Gwanghwamun Square when she sang three iconic protest songs, the Korea Times reported on Sunday.

Yang sang her three iconic protest songs – Morning Dew, To the Land of Hope and Evergreen Tree – that were banned during the 1961-79 presidency of former president Park Chung-hee, current President Park Geun-hye’s father.

The last line of her song Evergreen Tree was, “We shall overcome and be victorious.”

On Saturday night Yang posted a thank you message on her Instagram account. “I sang the (three) songs with people at Gwanghwamun. It was awesome,” she wrote.