We were plenty psyched enough to learn that MAC Cosmetics (the geniuses behind that rainbow ColourRocker lipstick collection) would soon join the ranks of our fave beauty brands at ULTA stores come May 7, but now, we have even more reason to celebrate.

Thanks to an Instagram clip posted to the retailer’s page, we know that as of 1pm EST on May 1, the retailer will have a half-price flash sale on MAC products!

As beauty vlogger Laura Lee says in the clip, “I’m gonna be telling you guys about an amazing flash sale going on.” While the actual sale’s content will come as a surprise, ULTA gave us a little teaser in the form of the caption (presumably written by Lee), which says, “You won’t want to miss it!!! It’s about one of my favorite MAC products besides my own lipstick.”

In addition to the mysterious half-price product, the video reveals several of Lee’s other can’t-live-without MAC go-tos, including the Prep + Prime Fix Facial Mist ($24), the Pro Longwear Paint Pot in Soft Ochre ($22), and MAC Lipglass Clear ($16), all of which we assume will be available to shop for the site’s big launch.

It’s happening in a just a few. The clock’s ticking!

What’s YOUR fave MAC product? Share with us over @BritandCo.

(h/t Allure; photos via MAC Cosmetics + @maccosmetics)