Katy Perry turned the stage at London’s O2 Arena into a full-blown sci-fi fantasy during her Lifetimes Tour stop, rocking a futuristic armor look. The pop powerhouse, 40, known for hit songs “Firework ...

London's O2 arena is now free to explore in Fortnite, although the venue will only be accessible for the rest of this week. The virtual event is the result of a partnership between O2, British music ...