If it's a Karan Johar party, it has to rock.
And when it's his birthday party, it becomes that much more special as the Who's Who of Bollywood steps out to wish the birthday boy.
Take a look at the glamorous arrivals.
Kriti Sanon, whose Rabta will release on June 9, looked prepared to dance the night away.
Saif Ali Khan and Kareena gave the event a miss, but the former's daughter Sara was there to make up for their absence.
There are rumours Disha Patani will be seen in Karan Johar's Student Of The Year 2 opposite Tiger Shroff.
Aamir Khan, who's finally tagged himself Mr Perfect, arrived hand-in-hand with wife Kiran Rao.
Sanjay Dutt was accompanied by his wife, Maanayata.
Goldie Behl accompanied his wife Sonali Bendre, sister Shrishti Behl and friend Susanne Roshan.
Katrina Kaif took time off from the Tiger Zinda Hai shoot.
Fashion designer-turned-director Vikram Phadnis arrived with Rhea Pillai.
Manish Malhotra, one of Karan Johar's oldest friends, posted pictures from inside the party.
Ranbir Kapoor was joined by Arjun Kapoor.
Close friends Tabu and Farah Khan arrived together.
Aditi Rao Hydari looked glamorous, as usual.
Sidharth Malhotra arrived with Alia Bhatt.
Director Kabir Khan, who is ready with his next film Tubelight, arrived with wife Mini Mathur.
While Armaan Jain arrived with friend.
Director Mohit Suri was accompanied by his wife, Udita Goswami.
Sameer Soni and Neelam looked lovely together.
Harshvardhan Kapoor tagged along with his Bhavesh Joshi director, Vikramaditya Motwane.
Raveena Tandon, who turned up in glamorous red, will be seen in Shab next.
Nimrat Kaur's current web series, The Test Case, is airing on ALT Balaji.
Shahid Kapoor took a break from working on Padmavati.
Varun Dhawan, too, took time off from his double role in the remake of Judwaa.
Bobby Deol arrived with wife Tanya.
Tiger Shroff recently launched the poster of his forthcoming film, Rambo, at Cannes.
Sooraj Pancholi dropped by.
Sanjay Kapoor and Chunky Panday were there as well.
Farhan Akhtar is working on Lucknow Central.
Hrithik Roshan was last seen in Kaabil.
Ekta Kapooor and her brother Tusshar were there as well.
Sonam Kapoor caught up on her messages.
Neha Dhupia smiled for the camera.
Producer Ronnie Screwvala came along with wife Zarina Mehta.
Television actor Mohit Raina, politician Milind Deora and business tycoon Yash Birla stopped by to wish the birthday boy.