On Friday, Britney Spears turned 41 years old!

However, not all of her fans are celebrating.

On Thursday, Britney posted a ton of old throwback photos and videos.

She claimed one dancing video was a “diff edit.”

She also shared more photos in a nightgown and veil in dim lighting.

Fans were concerned that she didn’t mention her birthday.

They were also worried about the lack of holiday decorations in the background.

A lot of fans have their own different theories as to why Britney keeps posting throwbacks.