As pulsating rave music boomed out of speakers set up outside Seoul's National Assembly, the protesters cheered and waved multicoloured light sticks.
"Impeach Yoon Suk Yeol! Arrest Yoon Suk Yeol!" they chanted.
The mood was festive, but the crowd was there for a serious cause – to get rid of the country's president.
On Saturday morning, four days after Yoon's abortive attempt to declare martial law, the president once again appeared on television. This time it was to say sorry to the nation, just hours before an impeachment vote.
But his mea culpa did little to appease the public. As lawmakers began making their way to the national assembly, various protest rallies started up across Seoul. While a few were in support of the embattled president, most were calling on him to step down or to be impeached.