Katy Perry Wears Popcorn Dress at ‘Katy Perry: Part of Me’ Premiere Concert [PHOTOS]

Katy Perry walked the “pink carpet” at the Los Angeles premiere of her concert documentary movie “Katy Perry: Part of Me” on Tuesday, but she wore a more interesting outfit for a concert the same day.

Perry wore a stunning red velvet dress and loose hair for the premiere at the Grauman's Chinese theatre in Hollywood, California. Also attending the premiere were Justin Bieber with Selena Gomez and Nickelodeon’s Victoria Justice.

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After the premiere she performed at a free concert for 5,000 people. Perry appeared from inside a giant bag of popcorn (with giant popcorn inside) and wore a popcorn skirt with red stripes.

The 27-year-old singer is also known for her always changing and colorful looks.

"I just like having fun. And, you know, sometimes I just like to present myself in that fun energy. Because you know, sometimes I’ll go head to an event or I’ll be at some appearance or whatever. And I don’t necessarily get to say, ‘Hello, how are you?’ to everyone. But when they see me, they know I’m having fun. And when I’m not, I’ll stop," Perry said about her image to ABC News "Nightline."

Perry’s 3D movie documented her year-long “California Dreams” tour which coincided with her breakup with husband comedian Russell Brand.

Perry has appeared in multiple TV shows to promote the movie and has broken her silence on the divorce.

The singer has said she wanted to talk about the divorce in her new movie because she didn’t want to hide that part of her life, but she addressed the topic in an “appropriate” way.

"I wanted to handle it very delicately with the most integrity I could possibly have and show people that like 'Look yeah I'm going through some of the same situations that half of America goes through', and somehow I landed on my feet and you don't have to lay down and die even if you feel like you're going to."

According to some reviews, at one point in the film, Perry is heartbroken and sobbing before going onstage.

“Katy Perry Part of Me” hits theaters on July 2.