Robbie Williams, Lady Gaga and Kasabian to perform at BRITs

'Angels' singer Robbie – who has previously spoken of how his severe stage fright has halted his live performances – will perform a short set to commemorate recieiving a lifetime achievement award, with rumours rife that he will reunite with his former Take That bandmates for the second time since launching a solo career in 1996.

A source told the Daily Mirror newspaper: "Take That could reunite with Robbie to perform his second track. It's the band's 20th anniversary year and they and they are in talks about doing something spectacular."

Robbie previously joined Take That and a host of other stars onstage for a rendition of Beatles song 'Hey Jude' at a concert in aid of charity Children in Need in November last year.

Meanwhile, rap superstar Jay-Z is rumoured to be making an appearance at the show, and will possibly perform with 'Viva La Vida' hitmakers Coldplay, fronted by Chris Martin.

A source said: "As well as bringing Alicia Keys on stage to do a rendition of their hit 'Empire State of Mind', he's thinking of getting Coldplay involved too. Chris Martin and Jay have been pals for years."

Meanwhile, Lady Gaga will not be able to realise her plan of performing alongside reality TV sensation Susan Boyle at the awards show - as the latter has reportedly been snubbed from nominations because she is "not cool" enough.

Susan– who rose to fame after appearing on 'Britain's Got Talent', one of media mogul Simon Cowell's TV shows – is said to have missed out on a nod in any category, despite being the biggest selling female artist of 2009 in the UK.

A source said: "She's not even shortlisted for Best Female, even though that's usually the weakest category.

"And it's not just an attack on Susan. It also shows how Simon Cowell is regarded by many in the record business."

However, one collaboration which will definitely take place at the awards will be between Dizzee Rascal and Florence and the Machine in a specially conceived track called 'You Got The Dirtee Love', a mash up of their tracks 'You Got The Love' and 'Dirtee Cash'.

'Beat Again' hitmakers JLS have also been confirmed to sing at the ceremony, which takes place at London's Earls Court on 16 February.

The nominations for the BRIT Awards will be announced tonight (18.01.10).