Chesney Hawkes serenaded Tory staff members, supporters and former MPs on the final night of Conservative Party Conference.
The singer, best known for his hit The One and Only, headlined a party organised by UK Music and TikTok at the Tories’ annual political gathering in Manchester on Tuesday night.
He treated the crowd to renditions of John Lennon’s “Imagine” and “Stacy's Mom” by Fountain’s of Wayne, as well as his 1991 number one.
Hawkes also did a cover of The Killers “Human” in which he changed one line from “are we human” to “are we Tory”.
The singer made an appearance at the Conservative conference despite saying he “would be Labour” earlier this year.
He said in May that he had an “amazing” time watching Prime Minister’s Questions from the public gallery in the House of Commons.
Asked on Good Morning Britain if he would consider standing in an election, he added: “Well of course, yeah, vote for Chesney. I’m all over it. I would be Labour, so watch out.”
Hawkes told the crowd in Manchester: “I’m just here to make you realise how important it is to invest in the music industry.
“Every part of the music industry, from the recording industry, to the publishing industry, to the live industry. Hundreds of millions of pounds, billions of pounds, come in from this industry.
“You guys need to pay attention to us.”
The event was separate from the official conference programme and is intended as a celebration of British music.
Former Sutton and Cheam MP Paul Scully and ex Milton Keynes MP Ben Everitt were in the audience.
M People singer Heather Small headlined the same event at the Labour Party Conference last week.
It comes as Kemi Badenoch was set to close the Conservative Conference on Wednesday morning.
She will put the economy at the heart of her leader's speech amid dire poll ratings for her party.
The Tories have sought to put a stronger economy and stronger borders at the centre of their agenda as they face an electoral threat from Nigel Farage’s Reform Party.
Mrs Badenoch has already confirmed a policy to leave the European Convention on Human Rights and deport 150,000 people a year.
In her speech on Wednesday, she will turn to the economy, setting out a "golden rule" that half of all money saved from cuts must be put towards driving down the deficit. The other half would go on spending or cutting taxes to boost the economy.
She is expected to say: "It starts with fiscal responsibility. We have to get the deficit down.
"And we must also show how every tax cut or spending increase is paid for.
"So today, I am going to introduce a new golden economic rule.
"Every pound we save will be put to work. At least half will go towards cutting the deficit."