Kylie Minogue has admitted that she isn't happy all the time.

The pop princess is well known for her bubbly nature but she has admitted that she has her downs as well as her ups.

Kylie appears in new French film Holy Motors alongside the likes of Eva Mendes and she spoke about how acting allows her to delve into other aspects of her personality. She said:

"No one's shiny and happy all the time. There are other sides of me that an experience like this has allowed me to explore."

Minogue continued: "My persona is 'Kylie'. As soon as I step out of my house I have that projection of me. But that isn't necessarily who I am. What face do I show?"