GrimesBarry Brecheisen/Invision/AP

At the Met Gala in early May, a surprising new couple showed up on the red carpet: billionaire tech CEO Elon Musk and Canadian musician and producer Grimes.

While Musk has long been known to date successful and high-profile women, the two made a seemingly unlikely pairing. Shortly before they walked the red carpet together, Page Six announced their relationship and explained how they met — over Twitter, thanks to a shared sense of humor and a fascination with artificial intelligence.

Since they made their relationship public in May, the couple has continued to make headlines: Grimes for publicly defending Musk and speaking out about Tesla, and Musk most recently for tweeting that he wants to take Tesla private.

The couple was in the news again on Monday for a new reason: the rapper Azealia Banks chronicled on Instagram what she claims was a strange weekend staying with Grimes and Elon Musk in Los Angeles. 

But for those who may still be wondering who Grimes is and how she and Musk ended up together, here’s what you need to know about the Canadian pop star.