Will you still love me, will you still hug me, when I'm number 1?

First came Neil Kinnock's cameo in a Tracey Ullman video and more recently the speeches of Tony Benn were immortalised on a rap album.

The latest combination of politics and popular culture comes courtesy of Cherie Blair who is set to become the queen of this summer's Balearic dance scene with a karaoke rendition of The Beatles song "When I'm Sixty-Four".

The Prime Minister's wife warbled the first few lines of the song at the request of a Chinese student after a press conference in Beijing last month.

Now Mrs Blair's voice has been worked into a dance track that is proving a floor filler in clubs from Ibiza to Ayia Napa in Cyprus. "The sample has serious novelty value. It's a catchy tune and an eccentric performance. When people realise it's Mrs Blair it is difficult to know how they will react but it is set to be red hot this summer," said a spokesman for Radio 1 in Ibiza, the biggest event in the dance music calendar from 8-10 August.

The track made it onto the turntables after it was mailed anonymously to key figures in the dance scene, which migrates to the southern Mediterranean for the summer.

One music industry source said: "The tune has taken off in a big way in the nightclubs all over Europe. It was treated as a bit of a joke but it's now proved to be a big favourite on the dance floor. The record was sent around the DJs who gave it a whirl and loved it.

"It's hilarious to think it - but Cherie could become the sound of the summer."

Mrs Blair sang The Beatles song, which first appeared on the Sergeant Pepper's album in 1967, after her husband was challenged by a student to perform a karaoke number.

Tony Blair had endured a gruelling 45-minute press conference shortly after the death of Government scientist Dr David Kelly when Peng Linlin said: "Sing us a song, sing the Beatles." Unprepared for the request and unwilling to take to the microphone, Mr Blair said: "A song? The Beatles? Where's my wife?"

Earlier this year the veteran socialist Tony Benn began his musical recording career, aged 78, with a rap album of his greatest speeches. The CD, produced by jazz and rhythm and blues composer Charles Begley, features Mr Benn speaking on a range of issues.

In the early 1980s, former Labour Party leader Mr Kinnock was filmed in a greasy-spoon café for the video of Ullman's "My Guy's Mad at Me".