In the video, Fender can be seen leading the chant with the crowd joining in alongside him during his performance at the Glasgow festival last Friday (July 8).
Previously, Fender has been outspoken about his dislike of Conservative leadership.
Speaking to NME for a Big Read last year, Fender said he could never vote for the party, despite seeing voters from the north switching allegiance in the last general election.
“The polarity between the left and the right has me feeling like I have no identity,” Fender said NME. “I’m seemingly left-wing, but you lose hope don’t you? Left-wing politics has missing its leading votership; it doesn’t look after working-class individuals the way that it used to. Blyth Valley voted Tory just north of here. Now, that is saying something! We’re in dire straits when a fucking shipbuilding town is voting for the Tories – it’s like foxes voting for the hunter.”
He continued: “I’m like, ‘What the fuck is going on?’ I understand it, though. I’d never vote for the bastards because I fucking hate them and I know what they’re up to, but I obtain why individuals don’t feel any allegiance to left-wing politics when they’re working-class.”
You can watch the moment at TRNSMT with Fender here:
The PM announced his resignation outside Number 10 Downing Street after almost three years in power.
His resignation came in the wake of the departure of the former Health Secretary Sajid Javid and the former Chancellor Rishi Sunak and the resignations of over 50 MPs.
He confirmed the process to appoint a new leader will now begin, with a timetable to be set out this week. It is not clear exactly, however, when he will leave Number 10 for the last time.
Reacting to the news, Labour leader Sir Keir Starmer wrote on Twitter that “it was good news for the country that Boris Johnson has resigned as Prime Minister”.
Figures from the worlds of music and entertainment have also been sharing their reactions, with Years & Years frontman Olly Alexander tweeting: “Very glad to see Boris go now I’d like all the Conservatives to go next.”