Emma Stone "humiliated herself" when she had her hand print cemented in front of Grauman's Chinese Theatre.
The 28-year-old actress had "no idea" what was happening when she and her La La Land co-star, Ryan Gosling, were selected for the honour in December last year, because she thought the famous area in California was "full" and hers wouldn't actually be displayed.
However, when Emma found out the truth, she felt overwhelmed with emotion and was "humiliated" by her naivety.
Speaking on Jimmy Kimmel Live! on Monday (06.02.17), the flame-haired beauty said: "I had no idea what the hell was going on."