She was once one of pop culture's biggest stars, but the tide appears to be turning on Katy Perry. The California ... collaborated with Dr. Luke on her album 143, despite Kesha's accusations ...

Katy Perry is headed to space ... just like someone might do from outer space. This song is full of energy and heart. “Firework” is all about shining bright and showing your true colors.

Perry's crew mates had asked if she would sing, suggesting her hits "Roar" or "Firework ... song choice in a post-flight interview. "The best part was when we got back in our seats after zero Gs ...