Janet Jackson turned 44 years old over the weekend, and in celebration of turning another year older, the young sister of Michael Jackson cut off her hair.

Here’s a photo, posted by TMZ, of Jackson popping up in London this week with a much shorter ‘do than anyone’s ever seen on her…

Janet Jackson's short hair

In other Janet news, she is set to headline New Orleans’ 2010 Essence Music Festival in July … and has a book due in the fall. The forthcoming book, titled True You, addresses her struggles with staying fit — Janet has always struggled with her weight.

“I’ve had issues since I was a child. I wasn’t heavy, but people made me feel like I was,” Janet told USA Today last month. As a 10-year-old on the TV series Good Times, “I was told I needed to lose weight. And they’d bind my chest, because I already had breasts. At a young age, I was being told I wasn’t good enough. So the book is about self-esteem as well.”