Khloe Kardashian: Darker Hair and Botox?

The temperature is getting lower, the days are getting shorter and celebrities' hair is getting darker.

Fall is here, and Khloe Kardashian is celebrating the season change with a darker hue of hair.

The Keeping Up With The Kardashians star showed off her dark locks on Instagram this Thursday, Aug. 21, with the caption, "Channeling my inner Priscilla Presley!!!"

The 30-year-old starlet, along with sisters Kim and Kourtney, have been posting behind-the-scene selfies of the Kardashian Beauty shoot all week.

Khloe's look screamed 1950s Hollywood glam, complete with old-fashioned waves and a light pouf in the front, a la celebrity hairdresser Jen Atkin. Celebrity colorist Tracey Cunningham, however, created the new brown hue.

The Kardashian family is a Cunningham fan; the beauty expert also did Kim's hair in February.

Khloe has now joined the ranks of Kim and Kylie who also went from blonde to brown. Other celebs are certain to follow in the fashionista's steps to match their hair to the colder weather.

The selfie raises some interesting questions, all hair color aside. Does anyone else notice something strange with Khloe's face? Hollywood Life reported on Aug. 22 that the star could possibly be experimenting with Botox.

Dr. Steve Fallek, who specializes in many cosmetic procedures, told Hollywood Life, "It definitely looks like Khloe has had some work done. She appears to have had lateral [injections] because her forehead is now firmer and her brows are in a new place. You also see a disappearance of crows feet on the outer eyes; there's definitely new firmness there."