Viewers found a Tweet from the star back in 2011, where she stated she did in fact collect the item.
“@Clairejeffreys love teapots! I collect them Thank you,” she shared on the social media platform.
Other guesses have included stars such as EastEnders star Kellie Bright, opera singer Katherine Jenkins and 80s pop star Samantha Fox.
As the stars are gradually being unveiled, will Denise be exposed as the star behind the Fox costume?
The Masked Singer continues on Saturday at 7pm on ITV.