Katy Perry performed her song "Wonder" live for the first time at the World Cup opening ceremony in Los Angeles - alongside ten-year-old Tius from Norway. The singer appeared in a sparkling sequined dress by Stella McCartney.

Katy Perry was recently out on a picnic with Justin Trudeau, and she made sure to dress casually in a cropped top and pants.

Perry and Trudeau's romance has been heating up, as they recently made their red carpet debut at the Tribeca Festival for the premiere of her concert film Katy Perry: The Lifetimes Tour - Live from Pa...