Pop star Katy Perry was spotted in London where she was reportedly having dinner with another famous singer.

Katy Perry Addresses Dating Rumors?

Photos of the Birthday singer were posted on Daily Mail on Thursday where her green hair was still visible with dark roots. She wore a white shirt with a black leather coat and a plaid skirt. She added boots with the outfit as she was seen at the British restaurant.

The site mentioned that she was on a dinner date although it may not have been a romantic one since her "date" was with Lights singer Ellie Goulding. She was at the restaurant in a black leather jacket with a white and green skirt as she reportedly joined her friend.

Katy Perry & Rihanna Have A Feud?

Perry was reportedly in a relationship with singer John Mayer, and rumor had it that her ex was spending too much time with the Roar star's friend Rihanna. According to Music News, Perry was not happy to discover that her friend and ex were collaborating.

"Katy's been left shocked and hurt after finding out John and Rihanna met up at a recording studio in LA two weeks ago before having dinner," a source allegedly told British magazine Now. "Rihanna asked John to sing vocals on a new track, but Katy's flipped out and told her best mate she's gone one step too far this time. Katy's totally unimpressed."

The source also mentioned that Perry was very much in love with Mayer, and watching Rihanna get "chummy" with him is a "complete slap in the face."

Tags: Katy Perry John Mayer