The 'Vogue' singer will be busy promoting her European tour and the LA bash will go on without her, reported People magazine.
Last year, the A-list event was held at her good friend Guy Oseary's home and went on into the wee hours of the morning.
The guest list was as star-studded as ever, including Best Actor winner Matthew McConaughey and wife Camila, Julia Roberts, 2014 Oscar host Ellen DeGeneres, Brad Pitt and Angelina Jolie, Mila Kunis and Ashton Kutcher, Leonardo DiCaprio, Meryl Streep, Miley Cyrus and among others.