The 'Wide Awake' singer launched her new film in the UK capital while Lawson and Conor Maynard also attended.
Katy Perry Wants Rihanna And "Hot Ginger" Prince Harry To Watch Part Of Me 3D - Video
The 'Teenage Dream' singer tells Capital she hopes the Royal and the Bajan star will head to the cinema to see her film.
Katy Perry says she is hoping both Rihanna and Prince Harry get to see her new 3D concert movie Part Of Me.
The 'Wide Awake' star launched her 3D cinematic epic in the UK this week with a star-studded premiere event, and revealed that close friend Rihanna has yet to see the big screen Katy Perry experience.
"I don't know if she's seen the movie, but yeah, I saw her yesterday just for a hot second," Katy revealed to Capital FM this week. "I'd love her to see it, she's kind of busy too!"
The 'We Found Love' singer and Katy have both talked regularly about wanting to collaborate on a track together sometime in the future, but have yet to announce any firm plans about the hotly anticipated team-up.
Katy also said she would love Prince Harry to see Part Of Me 3D, describing the royal as a "hot ginger", but admitting that the film may not be his style.
"Oh that hot ginger! Why not?" Katy added. "I think he's probably really busy too.
"He may not be my target demographic, the royals, the monarchy, but I hope I don't have a target demographic!"
View a picture of Katy Perry outside the London premiere of Part Of Me 3D this week below (Credit: PA):
Check out Katy Perry talking to Capital's showbiz reporter Kevin Hughes about Rihanna and Prince Harry below:
Katy Perry's new film Part Of Me 3D is out this week and the 'Teenage Dream' singer has been premiering the documentary across Los Angeles and Australia over the past several days.
Check out Capital's full gallery of the Part Of Me 3D premiere in London this week as well as our top ten key scenes from the film below:
Capital takes a look at Katy Perry's 3D concert experience and picks out some of the key scenes in the film.