The two ex-Reds accompanied the Premier League trophy at an event hosted by club partner Turkish Airlines in the Korean capital on 22 March, which was attended by around 1,000 people.
And many more fans from Ji-sung Park’s homeland gathered at the city’s Cheonggye Square to have their photo taken with the trophy and join the celebration of United’s historic 19 league titles.
Johnsen said: "I’m so glad to meet Manchester United’s fans in Korea – I did not expect the applause! It’s an honour that so many passionate supporters have come out."
Click the image above to see a gallery of photos from Seoul.