Robert Plant appears to be lined up as a special guest to perform alongside James Burton in London on June 4.

Burton, best known as Elvis Presley’s guitarist, is due to play at the London Palladium on June 4 for a “special one-night-only concert event” with “surprise guests to be announced”, according to the venue’s website.

But the concert’s opening act appears to have let slip that Plant is one of the surprise guests who hasn’t been officially announced as performing at the show.

“Not a big deal- so we’re opening the show at this little venue in London called the ‘Palladium’ with Brian May Robert Plant James Burton Van Morrison (Official) and loads loads more. Like I said there’s no point coming, it’s nothing special,” the band Essex County wrote on Facebook on May 18.

Brian May and Van Morrison’s participation in the show has already been announced, but Plant’s involvement hasn’t been revealed yet.

Despite the lack of confirmation that Plant will be involved, it certainly seems likely. Plant is already back in the UK during a break from his tour of the US and Canada with Alison Krauss. They’ll resume playing live in Las Vegas on June 14.

Plant was photographed backstage at Jools Holland’s show in Malvern on May 26, so he’s definitely in the country.

And we know that Plant and Burton are friendly, even having performed together in the past. Plant, Krauss, Burton and Duane Eddy recorded a version of “Can’t Let Go” that was shown on “The One Show” broadcast on the BBC in the UK on November 18, 2021.

Plant has been friendly with Burton for years, with Plant posting a photograph of him in September 2021. Burton was also photographed at a Plant show in 2016 where Plant held a charity meet and greet to benefit the James Burton Foundation.