According to MacRumors, Cult of Mac and a variety of social media reports, Apple employees are having a unique day at Apple’s spaceship campus — one filled with rainbows.

Last week, drone videographer Duncan Sinfield discovered that Apple had erected a gigantic new rainbow stage at the heart of its Apple Park campus, and this morning Apple employees learned what it meant: a huge celebration that culminated in a private performance from Lady Gaga herself.

There was rainbow swag:

There were rainbow staircases:

Rainbow coffee cups:

苹果飞船总部 Apple Park 今日正式开园，为庆祝开园园区内到处都是彩色经典logo的元素。



同时今天在中心舞台将有员工特别活动， ‍♀️Lady Gaga 将会出现，开幕式时间是美国时间 17日下午 6点，也就是北京时间 18日上午 10点。



图源粉丝好友和网络 ​ (via Weibo https://t.co/yI1HydrR96) pic.twitter.com/F3aDbaMMvB — 马丁 (@xxxxxxxxxl92) May 18, 2019

And most importantly, there was a full explanation on Apple’s own internal network:

Lady Gaga announcement on the intranet @Apple pic.twitter.com/FDLP9xrMWf — G A G A (@ansxgaga) May 17, 2019

According to those articles on the Apple intranet (via Cult of Mac), the rainbows are all part of a special event today — one celebrating the formal opening of Apple Park (though it technically opened in April 2017) and paying tribute to late Apple co-founder Steve Jobs simultaneously.

Apple CEO Tim Cook confirmed as much later this evening:

We came together today, in the home you imagined for us, and celebrated your spirit. We love you, Steve. pic.twitter.com/5PccqcBi1c — Tim Cook (@tim_cook) May 18, 2019

The colorful arches aren’t just some fancy tent, by the way. It’s called the Apple Stage, and it’s apparently a 25,000 piece structure built to the specifications of Apple’s famous design director Jony Ive (the one whose face may someday appear next to “aluminum” in the dictionary). According to the report, the design breaks down into a set of building blocks that Apple can use again and again, meaning we may see it reappear for future events.

But first, Lady Gaga got a chance to break it in.

software people going gaga for Gaga ☺️ pic.twitter.com/Bg5VHLHJL3 — Fake President (@TaylorKsCalves) May 17, 2019

Lady Gaga is casually performing at work today pic.twitter.com/7vSl1yJ1QC — Rody (@Rododon) May 17, 2019

Lady Gaga visit to @apple from SkyRanger pic.twitter.com/6v90bjJF59 — Tim Bollinger (@hittnthebeach) May 18, 2019

Live over #Apple HQ in Cupertino, where #LadyGaga is set to play at the Apple #Spaceship https://t.co/tpLeo7GmH9 — scott budman (@scottbudman) May 18, 2019

Así fue el minuto de silencio en memoria de Steve Jobs, cofundador de Apple, que Lady Gaga realizó en la inauguración del Apple Park. pic.twitter.com/4Wwrr8tWZb — LadyGagaMonsterBlog (@LGMonsterBlog) May 18, 2019

VIDEO: Lady Gaga performing “The Edge Of Glory” at Apple Park. pic.twitter.com/zp07TP7iUV — Lady Gaga News (@TomyKMonster) May 18, 2019