The 23-year-old pop sensation from Santa Barbara, California brings her “Hello Katy Tour” to Luxembourg! Katy Perry combines the cheeky, club-ready pop music of Lily Allen with the commercial pop/rock of Avril Lavigne and Alanis Morissette. Her debut single, Ur So Gay, generated some online buzz with its mischievous lyrics. However, I Kissed A Girl and Hot ‘n’ Cold proved to be her true breakthrough singles, topping the charts in a gazillion countries and pushing its accompanying album, One of the Boys, into the Top Ten listings all over the world. And the current single Thinking Of You really shows Katy Perry from a different, a far more mature angle.