Miley Cyrus responds to pregnancy rumours on her 25th birthday: 'RUDE!!!'

Miley Cyrus would like you know that she's definitely not pregnant, thank you very much.

The singer -- who celebrated both Thanksgiving and her 25th birthday on Thursday -- shared a photo to Instagram on Wednesday posing in a loose-fitting t-shirt.

The caption read: "So close to b-day time! Stoked for a day full of Tofurkey [vegan turkey substitute] & loved ones. Ain't it ironic? #VeganTurkeyBaby"

But fans were more focused on whether or not she was with child than her meal choices.

"Is she pregnant?" One fan commented. "Not being rude but I'm a mom of 3 so I know a pregnant belly when I see one."

Another Instagram follower wrote: "Baby bump?😍😍😍"

And someone else eagerly replied, "Congratulations beautiful ❤️ @mileycyrus Your gonna be such an amazing mom 💯"

But the 'Malibu' singer wasn't having ANY of that.

"RUDE!!!" Cyrus wrote on Twitter. "Not pregnant just eating a s--- ton of tofurkey."

Meanwhile, the former child star has been showing off her birthday gifts from Liam Hemsworth.

The Australian actor showered her with presents, including a rainbow-coloured necklace  that spelled out his nickname "Lili".

"My mannnnnn's already winnin & it ain't even my bday yet!" Cyrus captioned a photo of the jewellery. "Rainbow LiLi is soooo frigggggen cute!"

And in another post, she showed fans a pair of earrings that Hemsworth gave her.

"Lili turnt the birthday party," she wrote in the Instagram caption. "Blingin rainbow hoops ! He says there's more comin! Hehe!"

Cute!