Katy Perry is beautiful in Marchesa as she stands next to a giant candy cane at the European premiere of her film, Katy Perry: Part of Me, held at Empire Leicester Square on Tuesday (July 3) in London, England.

The 27-year-old singer even wore red, white, and blue eyelashes to the event!

PHOTOS: Check out the latest pics of Katy Perry

“IT’S THE <3 LONDON <3 PREMIERE! Even my lashes are excited! See you soon! #KP3D,” Katy tweeted.

Katy Perry: Part of Me hits theaters everywhere on July 5. We can’t wait!

15+ pictures inside of Katy Perry at her UK premiere… More Here! »

Katy Perry gets dolled up in a strapless sequined dress for the premiere of her movie, Katy Perry: Part Of Me, on Saturday (June 30) in Sydney, Australia.

The 27-year-old “Wide Awake” singer was all smiles as she posed next to a huge cotton candy tree before heading inside.

PHOTOS: Check out the latest pics of Katy Perry

“Welp, that was heaps of fun!” Katy tweeted. “Thank for letting me come down under… <3 u Aussies! Show your love July 2nd AUS! #KP3D.”

10+ pictures inside of Katy Perry walking the pink carpet at her movie’s Australian premiere… More Here! »

Selena Gomez walks the red carpet at the premiere of the new concert film Katy Perry: Part of Me 3D held at Grauman’s Chinese Theatre on Tuesday (June 26) in Hollywood.

The 19-year-old singer wore an Emilio Pucci dress and Jimmy Choo heels.

Selena was joined on the red carpet by “Call Me Maybe” singer Carly Rae Jepsen and comedienne Kathy Griffin. Her boyfriend Justin Bieber arrived just in time for the screening.

Katy‘s concert film chronicles her life on and off stage during her recent California Dreams tour. Catch the flick in theaters on July 5!

10+ pictures inside of Selena Gomez… More Here! »

• Katy Perry goes Deep Blue – BOP-Tigerbeat
• Who wore the red dress better? – TooFab
• Carrie Underwood isn’t loving love songs – Just Jared
• Best Dressed at Coachella 2012 – Teen.com
• First look at Lea Michele as Dorothy – Wetpaint
• Josh Hutcherson reacts to GLAAD honor – Celebuzz
• Kristen Stewart and Robert Pattinson: Breaking Dawn re-shoots coming – Cambio
• Kylie Jenner: Photo shoot with Kris and Kendall – Celebuzz

Prom season is fast approaching and young Hollywood is dreaming of their perfect prom dates.

But Taylor Swift isn’t thinking of one particular person, she’s thinking of several!

The 21-year-old country superstar revealed to Rachel Ray on her show (via People) that her group would definitely be the one you would want to hang out with. Taylor shared, “It would be a group, and it would be a really fun group, because all these different reasons. Well, Katy Perry would be so much fun. She’s just like crazy fun and like spontaneous.”

Taylor added, “Diddy has always been very nice to me. Justin Timberlake is the same way, he’s really funny. And, Sheryl Crow is really down to earth and really cool. And like, J. Lo would be a really good dancer!”

WHO WOULD BE in your prom posse?

• Katy Perry sets off ‘Firework’s – Just Jared
• Greyson Chance knows ‘What Teens Want’ – JSYK
• Magnus Carlsen: Check Mate – Teen Vogue
• Miley Cyrus’ parents, Billy Ray and Tish, are divorcing – EOnline
• Nick Jonas takes a tumble – Celebuzz

We have a ton of birthdays this week! Tons!

Not only did she tie the knot with comedian Russel Brand, but Katy Perry also celebrated her 26th birthday!

Degrassi alums Shenae Grimes and Drake share the same birthday, just three years apart.

Pretty Little Liars costars Troian Bellisario and Janel Parrish celebrate their big days this week.

Who else is celebrating birthdays this week? Olympians Sasha Cohen and Nastia Liukin, Chelan Simmons, Adrienne Bailon, Conchita Campbell (from The 4400), Lexi Ainsworth (from General Hospital), India Eisley, and our pal Italia Ricci!