The designer has dressed the pop superstar on several occasions and says she's a joy to work with because she can carry off so many styles.
He said: "Kylie has been really, really good. We've dressed her a number of times. I adore her as a person. She is creative, fun, professional, and the whole team works well with her. It's fantastic when it works like that."
As well as having his own label, Giles has collaborated with Mulberry, New Look and Nine West and thinks with other brands is great way to keep his creations fresh even though it means he's always busy.
He told Metro: "It's good to get new experiences. They're fun to do as long as everyone is on the same page. We're precise with who we work with. We try not to duplicate things. We want to make something new each time.
"We do a timeline a year in advance. I also have my own label, which is going well in its own right. You just get used to it."