Katy Perry celebrated her birthday in Paris.

The 'Dark Horse' hitmaker - who turned 30 on October 25th - flew in a private jet to the French capital alongside 70 of her friends.

A source told the New York Daily News' Confidenti@l column: ''They piled off the flight, her friends, assistants, her whole camp.

''She flew all of her friends out, all on her dime. DJ Mia Moretti was in the group, and Katy's boyfriend Diplo.''

The star - who was in Morocco taking a three week hiatus from her 'Prismatic' World Tour - decided to book the last minute flight after her plans to head to Egypt were dashed following a security threat.

The 'Roar' hitmaker reportedly landed at Paris's Le Bourget Airport on Sunday evening (26.10.14), where she was seen acting ''cuddly'' and taking selfies with her boyfriend.

Later on, some of the group were spotted at Le Jules Verne, a Michelin Star restaurant located on the second floor of the Eiffel Tower.

The source continued: ''She was all dolled up. Her reservation was at 9:30 pm, she left close to midnight.''

Katy left Paris early this morning (27.10.14) with her boyfriend, Diplo, who is due to DJ in San Jose, California on Wednesday (29.10.14).