Beyoncé announced via Instagram on Saturday morning that something called “Lemonade” is coming Saturday, April 23.

“Lemonade” will premiere at 9 p.m. eastern / 6 p.m. pacific on HBO. A small preview depicts Beyoncé up against a car. “What am I gonna do? What am I gonna do?” she asks:

It’s not clear what exactly “Lemonade” is. If it’s not a music video / new single, there’s chatter it’ll be a short film, which would explain why it’s debuting on HBO.

HBO and Beyoncé have worked together in the past. Most recently the pay cabler was the home of Bey and Jay Z’s “On the Run Tour” concert special.

Fans are expecting Bey to release a new album ahead of her Formation World Tour, which kicks off April 27 in Miami, Florida. She released the single “Formation” two months ago and then performed it at the 2016 Super Bowl.

“Lemonade” will debut on HBO the same weekend Game of Thrones season 6 premieres. In other words, it’s going to be a great weekend for HBO.