Katy Perry & Adam Lambert: This Is It!

Glamour gods Katy Perry and Adam Lambert hit the red carpet at the premiere of This Is It in downtown L.A. on Tuesday (October 27).

Katy, 25, who wore vintage Christian Lacroix couture, and Adam, 27, paid tribute to Michael Jackson by viewing the film, which documented the late entertainer’s work on a tour that was preceded by his death.

Despite the somber nature of the film, celebs arriving seemed to be in high spirits and ready to celebrate Michael‘s life and career.

Kenny Ortega who choreographed and directed the concert, Ashley Tisdale, Neil Patrick Harris and Jackson family members were all in attendance.

“On my way to the THIS IS IT premiere w my lovely date Miss Katy Perry!!,” Adam tweeted earlier today. “We are dressed!”