Credit: Instagram

Does Khloe Kardashian feel that she needs to turn her smile upside down? 

The reality star recently flew back to L.A. after spending time in Australia to promote the Kardashian Kollection fashion line this week. 

However, on the day she flew home, Khloe posted a photo of herself and pals on Instagram, and Khloe admitted that they didn't look very happy in the pic. 

"Going Going Back Back To Cali!!!" Khloe captions the photo on November 22 by quoting a Notorious B.I.G. song, before adding, "#WeNeedToSmileMore LOL." 

We think Khloe looks great in the pic, as her flannel top is super cute. However, we do agree that she doesn't appear to be wearing the world's biggest smile.

Then again, Khloe clearly has a lot on her mind at the moment. Husband Lamar Odom recently recorded a rap video of himself in which he appears to be bragging about cheating on Khloe

Sources say that Khloe is very hurt by the rap video"Khloe thinks the video is bad, just real bad," a source has said. "She’s not surprised by it, but she feels it’s another blow to her. It’s a slap in the face."

Do you think Khloe's marital trouble is making it hard for her to smile?

Source: Khloe on Instagram