His performance on Saturday is billed by London's City Hall as part of the capital's official Royal celebrations and a “Royal Rock Out”.
But former Sex Pistols star Glen Matlock - who is playing at the legendary 100 Club - has told the Mirror he’s “no royalist” and “thinks about the King as much as he thinks about me”.
The 66-year-old legend adds: “You have to ask the question whether we need the monarchy at all.”
The star said he’s putting on the show for people “fed up with the Coronation” and will play anti-Royal song God Save the Queen, but change the lyrics to include the new King.
He said: “When the show was set up I didn’t even realise it was going to be the Coronation. The people in my rock and roll circle are not up to date with the Royal Diary.
“I’ve been in America for two months and it has sort of crept up on us. I am no royalist but am not vehemently anti-royalist. Hopefully people will be fed up with proceedings in the afternoon and will want to get out of the house after watching it.
“It will get me out of the house from watching it too.”
Asked about his thoughts about the King, he laughs: “I think about the King as much as he thinks about me. He hasn’t had much of a chance yet but he’s been groomed quite well…but you have to ask the question as to whether we need a monarch at all. But at least Johnson isn’t in power.”
The Pistols’ 1977 God Save the Queen was released during the former Queen’s Silver Jubilee, which Glen will play on Saturday.
“We’ll have to change the words a bit but it will be a missed opportunity if I don’t,“ he says. “I wrote the music for that song and John (Lydon) wrote the lyrics. My interpretation was that song wasn’t exactly bigging the Royals up given it equated them with a fascist regime.”
Glen is to play the song, as well as new tracks off his solo album ‘Consequences Coming’ released last week on. The show will be followed by further solo tour dates around the UK. Glen is currently touring with Blondie
For tickets, check out glenmatlock.co.uk