Billie Eilish has made Grammys history.

The 18-year-old has become the youngest artist to sweep all four major categories at this year's ceremony: Record of the Year ("bad guy"), Song of the Year ("bad guy"), Best New Artist, and Album of the Year (WHEN WE ALL FALL ASLEEP, WHERE DO WE GO?).

She's the first female artist to win the big four awards in one ceremony. Eilish has also replaced Taylor Swift as the youngest-ever solo winner for Album of the Year. Additionally, Eilish has become the first woman and second person ever to win Record of the Year, Best New Artist, Song of the Year, and Best New Artist in the same year. Adele has won all four, but not in the same ceremony.

During her acceptance speech for Album of the Year, Billie told the crowd that Ariana Grande's Thank U, Next was the more deserving project.

"Can I just say, I think Ariana deserves this," Billie said. "Thank U, Next ... I think it deserves more than anything in the world. I love you so much."

Grande was seen in the crowd mouthing "no, no, no," before blowing kisses to Eilish. Grande headed into the night with five nominations: Album of the Year, Record of the Year ("7 Rings"), Best Pop Solo Performance ("7 Rings"), Best Pop/Duo Group Performance ("Boyfriend"), and Best Pop Vocal Album (Thank U, Next). She left the ceremony with zero wins.