With Dannii looking after her mini Minogue the panel of power welcomed the first of our celebrity guest judges in Glasgow, the notoriously never lost for words, formally ginger, Geri Halliwell.

Guest judge Katy Perry helps Simon Cowell, Cheryl Cole and Louis Walsh select the best solo singers and groups in Dublin as the auditions move to Louis's native Republic of Ireland for the first time since 2006.

Guest judge Natalie Imbruglia helps Simon Cowell, Cheryl Cole and Louis Walsh select the best solo singers and groups at the auditions in Birmingham, where highlights include a female duo whose attitude fails to impress Simon. Plus, more from London, where a pair of twins from Paris bring back memories of Jedward for the judges.

Pixie Lott helps Simon Cowell, Cheryl Cole and Louis Walsh put through the best solo acts and groups as the auditions reach Cardiff, where last year the judges discovered Lucie Jones and Lloyd Daniels, who would go on to reach the live finals.

In the first of two shows from Manchester bringing the 2010 auditions to a close, Simon Cowell and Louis Walsh are joined by Pussycat Dolls lead singer Nicole Scherzinger on the judges' panel, but have to make do without Cheryl Cole, who was recovering from malaria when this double bill was filmed.

With Cheryl Cole still absent, the contestants in Manchester have one last chance to impress Simon Cowell, Louis Walsh and guest judge Nicole Scherzinger in the final audition show before boot camp begins next week.

The first of this weekend’s bootcamp double bill, as the cream of the crop from the nationwide auditions head to London. Over 200 acts will be tested to the limit at Wembley Arena in the biggest bootcamp ever. They will face choreography, vocal coaching and styling sessions as they try to stand out from the crowd. Those that make it through the first challenges will get to perform centre stage in front of Simon Cowell, Louis Walsh and guest judge and Pussycat Doll Nicole Scherzinger. Host Dermot O’Leary will be there at every step of the way as we find out who makes it through and who heads home.

It is the second of this weekend’s bootcamp double bill. The solo performances continue as one by one, the acts take to the biggest stage yet. No-one can afford to slip up as they face Simon Cowell, Louis Walsh and guest judge and Pussycat Doll Nicole Scherzinger. Tonight, the judges decide who they believe could go all the way as they reveal who makes it to judges’ houses. Host Dermot O’ Leary will be there every step of the way as we find out who makes it through and who heads home.

Those who have made it through travel to the judges houses where they have one last chance to impress before the judges decide who they will put through to the live stages of the competition.

The judges reveal who has made it through to the live finals.

Tonights theme: Number one Singles. Dermot O'Leary hosts the first of the live shows. Thousands of singers auditioned across the UK and their numbers have been whittled down so that now only the 12 finalists remain to battle it out for a life-changing record contract. Each finalist is mentored by one of the judges - Dannii Minogue returns from maternity leave to support the boys, Cheryl Cole looks after the girls, Simon Cowell is mentoring the groups and Louis Walsh is helping the contestants in the new over-28s category. Tomorrow night, the first act will leave the competition.

Dermot O'Leary reveals how the public has voted in the first live results show. The acts with the fewest number of votes must sing again in the final showdown, and then it is up to the judges to decide who will be leaving the competition. Plus last year's winner Joe McElderry gives the first performance of his new single.

Tonights theme: Heroes.

Join host Dermot O'Leary live as the 11 remaining acts find out the results of the public vote. The two acts with the lowest number of votes must sing for survival in the final showdown. Then it is up to the judges to decide who stays to sing another day and who leaves the competition.

The 10 remaining acts battle it out to win the public's votes and stay in the competition.

Join Dermot O'Leary live for the results of the public vote. The two acts with the lowest number of votes must perform again in the final showdown. Then judges Louis Walsh, Dannii Minogue, Simon Cowell and Cheryl Cole will decide who stays to sing another day and who leaves the competition.

Live Show

Dermot O'Leary hosts the all-new Sunday night X Factor results show, as the nine acts find out the results of the public vote. The two with the lowest number of votes will sing for survival in the final showdown, then it is up to the judges to decide who stays to sing another day and who leaves the competition

The battle for the crown continues as the eight remaining acts step onto Britain's biggest stage for the fifth live show. Each of the performers will be hoping to impress the voting audience at home as well as judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh. Host Dermot O'Leary will be on hand to deal with the war of words as the judges give their views on each performance and defend their singers. Next time, one act will be leaving the competition.

Dermot O'Leary hosts the live results show. The remaining performers will be on tenterhooks as the results of the public vote are revealed, as the two acts with the lowest number of votes must sing for their survival in the final showdown.

Only seven acts remain and the competition will be getting fiercer than ever as the performers battle it out to stay in the running. Judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh will be on the edges of their seats as they support the singers they are mentoring

It is time for the seven remaining acts to find out the result of the public vote. The two acts with the lowest numbers of votes must sing for survival in the final showdown. Then judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh will decide who stays in the competition and who is sent home.

here are only six acts remaining in the competition, and today they must sing live again in a battle to win the biggest prize in pop. Also fighting it out are judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh, who are each mentoring one category of singers. Host Dermot O'Leary will be on hand to deal with all the tears and triumphs.

t is time to reveal the results of the public vote. The two acts with the fewest votes will have to perform again in a sing-off, and then it is up to the judges to decide who stays in the competition and who is eliminated.

It is the eighth live show, and with only five acts remaining, the pressure is really on to make an impression on both the judges and the voters at home. Panellists Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh will be rooting for the performers in their categories