No one can drag Billie Eilish down…unless you’re the weight strapped to her during the photo shoot for her Hit Me Hard and Soft album cover art.

The Grammy-winning singer revealed on Tuesday’s episode of The Late Show With Stephen Colbert that the photo for her third studio album, released May 17, was in fact “very real” and not photoshopped.

“This was the day after this last Grammys, actually. I had gone to sleep at 7 a.m.,” Eilish recalled of the day she shot the artwork. “I woke up, I dyed my hair black — it was like bright red — I dyed it black that day. Then I went to this random place in Santa Clarita or some nonsense. There’s a tank in this giant place, and it was, like, 10 feet deep. And I popped my little ass in there, and I was in there for six hours.