Katy Perry made her X Factor debut as a guest judge on Saturday night standing in for the lovely Danni Minigoue.

Looking stunning on the night, Katy was warmly received by her fellow judges and audience alike in contrast to the previous guest judge in week one, Geri Halliwell.

The Californian Girls singing superstar joined Simon Cowell, Cheryl Cole and Louis Walsh at The X Factor auditions in Dublin, a venue not visited by the show for sometime.

Katy appeared to be quite at ease in her role on the show and seem to have taken a shine to Cheryl Cole, commenting on her figure, fashion and gorgeous appearance. When asked by the press if she liked the role of being a judge on The X Factor, she replied:

“It’s fun to give my opinion and I always have one of course. Hopefully I can give something to these kids that they can actually learn from rather than like ‘oh no you’re crap!”