'X Factor' Promo: One Direction, Leona Lewis, Olly Murs And JLS Praise The Show (VIDEO)

WATCH: 'X Factor' Recruits One Direction For Praise Promo

One Direction, Leona Lewis, JLS and Little Mix all feature in a new promo video for the X Factor, singing the show's praises.

The former contestants on Simon Cowell's talent show star in the new clip, documenting how it launched their careers.

Of course the less successful contestants from the show and those who have come out to condemn it, such as Steve Brookstein and Matt Cardle, are not featured in the video.

Olly Murs says: "Every time I went out there on a Saturday night I thought 'God this is the best job ever.'"

And Leona Lewis tells how the show was a "big learning experience" for her, while One Direction say they felt like "the five luckiest guys on the planet".

The X Factor is due to return in the autumn, once again with a new judging panel. Kelly Rowland has parted ways with the show, so former Pussycat Doll Nicole Scherzinger will take her place alongside Gary Barlow, Tulisa and Louis Walsh.

It has been reported Barlow, who was recently made an OBE in this year's Queen's Birthday Honours List, will mentor the Over- 25s group on this year's show.

The Sun claims he has been given the job of trying to create the first winner from the Overs category since Steve Brookstein won the first series in 2004.

Olly Murs, Series 6

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