Cheryl Cole and Kylie Minogue provided some sizzling performances during The Voice semi-finals, but it was the rising temperatures outside the studio that were being blamed for the show's lower viewing figures.
Cheryl made a spectacular entrance on Saturday night's BBC One singing show by swan diving onto her backing dancers to perform her new single Call My Name.
Dressed in a patterned crop top, bright pink waistcoat, multi-coloured harem trousers and leopard print boots, she certainly impressed the show regulars, with both presenter Reggie Yates and judge Tom Jones later commenting on how sexy she looked.
The Girls Aloud star joked afterwards: "I was looking for the quickest way to the stage. It's been a while."
Not to be outdone, Kylie took to the stage in denim hotpants and a customised leather jacket to perform her new song Timebomb on the Sunday results show.
Halfway through the number, she removed her jacket to show off her impressive figure in a revealing bondage-style corset.
The Saturday show drew just 4.5 million viewers on average. The programme is now pulling in less than half the audience it attracted at its height during the early stages of the contest. At one stage in April the show had 10.7 million.
The warm weather is thought to be partly to blame for the lower audience as viewers take advantage of the sunshine.