1. ITV Report

Louis and Tulisa's rivalry begins at X Factor launch

Louis Walsh and Tulisa Contostavlos were all smiles as they attended the X Factor launch today - despite Louis labelling the N-Dubz singer a "chav."

The pair were joined by fellow judge Nicole Scherzinger and show host Dermot O'Leary as they posed in London ahead of the four-month talent search returning to screens on Saturday.

Tulisa Contostavlos, Louis Walsh, Nicole Scherzinger and Dermot O'Leary at the launch of this year's X Factor Credit: Ian West/PA Wire

In an interview earlier this week, Louis referred to fellow judge Tulisa as "a chav in a tracksuit".

But arriving at the Corinthia Hotel this morning for the official launch of the ITV1 show, he clarified that his remarks were intended to be light-hearted.

"It was a joke but she is a little bit in a good way. We always have fun, it wasn't meant in a bad way. We're really good friends but I like to tell it like it is," he said.

Although that didn't stop him having a brief dig at the young judge, saying at the launch that he, "wouldn't let her win again!" When talking about the rivalry between the judges.

Tulisa won on her first series on the show as a judge last year when Little Mix, the girl-group she mentored, won the competition.

At the launch Nicole Scherzinger spoke about the differences between the UK and US singers after appearing as a judge on the first US series of the X Factor.

Typically in the US, we have big diva singers like Mariah, Whitney, like Melanie Amaro who just won (The X Factor USA) last year and in the UK they are a little bit more singer-songwriterly and folkier.

You've got a lot of wit, a lot of character, a lot of storytelling that they bring to the table when they're performing and when they're writing so it's not so much about the big voices, it's more about the character and the tone of their voices here

Louis agreed saying that: "There's all sorts of people this year. I know who the final 12 will be and there's someone for everybody."

He added: "It's not all about the voice on the X Factor - it's also about the personality."