Katy Perry, Diplo

CHP/FAMEFLYNET PICTURES

There was a familiar face during Katy Perry's globe-trotting birthday celebration!

The singer was spotted arriving at the Le Bourget airport in Paris on a private jet from Marakesh, Morocco, alongside EDM producer Diplo (real name Wesley Pentz) on Saturday.

"They goofed around on the tarmac and Katy looked cute in her matching Adidas track suit and flip flops," an insider tells E! News. After posing for some pictures together, the duo and Perry's camp took a shuttle into the city and got ready for a night out in the City of Light.

"Katy was seen dressed up with her entourage as they walked to the very romantic Restaurant le Jules Verne on the second floor of the Eiffel Tower," the source continued. "They were inside for about two and a half hours. Katy looked happy but tired as she was yawning."

The duo left Paris the following day. Diplo continued his travels over to Korea for a scheduled performance.

Meanwhile, news broke that the DJ is expecting his second child—no, not with Katy. The New York Daily News reports Diplo's ex-girlfriend, Kathryn Lockhart, who is the mother of their 4-year-old son Lockett, is expecting her second child with the musician, and is reportedly due very soon.

According to the report, Lockhart became pregnant around the time Diplo and Katy first began hanging out together in April. He hasn't publicly said anything about the pregnancy, but did change his current display name on Twitter to "Baby Daddy."  So, there's that.

E! News has reached out to Diplo's camp for comment.

—Reporting by Michelle Falls

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