OAP pop stars The Zimmers have been voted off hit TV show Britain’s Got Talent – despite being praised by top party rockers LMFAO.

The Islington-born group, which is made up of 22 pensioners aged from 68 to 88, brought the house down with their rendition of LMFAO’s Sexy and I Know It during yesterday’s live semi-final.

They even won the praise of the American electropop band, with Redfoo – one half of the famous duo – saying: “The Zimmers stood out for me, because it shows that you can be a party rocker at any age.”

But The Zimmers failed to scrape together enough of the public vote to make it through to the finals.

Manager Dave Halmer said: “Whoever thought that a bunch of pensioners would get to the semi-final of Britain’s Got Talent?

“We set out to highlight the cause of pensioners and we did. They had the time of their lives.”

Former embroidery machinist Dolores Murray, 69, of Basire Street, Islington, who performs alongside her sisters Netta Falco, 72, and Sylvia Beaton, 70, added: “There was such a lot of top competition. We were just happy to be in the semis. There were like 50,000 people there. It was fantastic.”

The Zimmers first got together in 2007, as part of a protest against the closure of the Mecca Bingo Hall in Essex Road, Islington.

They suffered a setback when their lead singer, Alf Carretta, died at the age of 93 in 2010.

But they came back fighting and on Tuesday, oldest member Grace Cook, 88, of Hoxton, seized the microphone for a solo rap.

Mrs Murray said: “We said we were doing this for Alf. We knew that we would make Alf proud.”

Dance group Four Corners, which features six Islingtonians, was also voted off Britain’s Got Talent. The group, which was praised by judge Simon Cowell, did not make it through the live semi-final on Monday despite an all-out performance to Nicole Scherzinger’s Poison. But they launched straight back into rehearsals the following day.

Solange Urdang, of the Urdang Academy in Rosebery Avenue, Finsbury, one of the managers of Four Corners, said: “I would be lying if I said they weren’t disappointed. I think even the judges may have been surprised that they didn’t get through. But the world is our oyster at the moment. They are still in rehearsals. Their attitude is, ‘Let’s crack on.’”

Britain’s Got Talent – which saw more than 60,000 budding stars attend the auditions - draws to a close on Saturday, when the 10 finalists will perform head to head.