Selena Gomez Hits Katy Perry Part of Me Premiere (video!) 1Selena Gomez and Justin Bieber were among celebrities who turned out for the premiere of Katy Perry’s move/documentary “Katy Perry: Part of Me” in Los Angeles last night.

Perry also stood out in the crowd on the pink carpet at Grauman’s Chinese Theater, with what’s becoming her trademark purple hair. Bieber protege Carly Rae Jepsen was also in the crowd.

She wore a knee-length, red velvet Dolce & Gabbana dress with matching shoes. She was accompanied by her grandmother Mary Perry Hudson. Perry has be reported to be dating Robert Ackroyd, a guitarist with Florence + The Machine, although the relationship is off-on.

Selena was spotted in a pink Emilio Pucci mini dress with gold Jimmy Choo sandals. While, she did a turn on the red carpet, Justin stayed on the sidelines and joined her afterward.

Carly, meanwhile, wore a blue asymmetric dress and neon yellow pumps. Carly posed on the pink carpet with Selena.

“I never thought I’d shut down Hollywood Boulevard,” Perry said. “I told them I wanted to do something special; I hope this is special enough.”