Billie Eilish reveals backstage conversation with Miley Cyrus at the Grammys

Billie Eilish has revealed what she and Miley Cyrus spoke about backstage after they won their Grammy awards.

The two singers bumped into each other after they picked up their gongs.

Miley took home the prize for Record of the Year and Best Pop Solo Performance for her hit song, Flowers.

Billie won Song of the Year and Best Song Written for Visual Media for her track, What Was I Made For?, from the Barbie soundtrack, which she wrote with her brother Finneas.

"Not to blow up her spot, but she was asking me if I also feel when I get up on stage that I say the dumbest s**t I could possibly say?" Billie told Entertainment Tonight. "Absolutely, 100 per cent. She was like, 'Why was I saying all that?'"

Billie continued, "Sorry, Miley, but I feel the same. I always get up there, and I just poop out of my mouth."

In Miley's acceptance speech, she gushed, "This award is amazing, but I really hope that it doesn't change anything because my life was beautiful yesterday. Not everyone in the world will get a Grammy, but everyone in the world is spectacular, so please don't think that this is important."

Billie dedicated her win to Barbie director Greta Gerwig, saying, "This was all because of Greta. She deserves it as much as we do."