It's been an unfortunate time for Annalynne McCord, who earlier in the week accidentally posted a nude photograph of herself onto Twitter. But while the actress was embarrassed about the incident, it seems she has moved on after new photos from the set of 90210 show the actress with beaming smiles.

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PHOTO: Twitter/Socialite Life

The new series of 90210 will return to channel 6 on Tuesday, but Socialite Life has already gotten hold of some on-set pictures ahead of the premiere. The photos don't give away too much about the plot, but McCord has been photographed sporting a big grin with a black polka dot top and high rise burgundy pants.

McCord made jaws drop earlier in the week when she accidentally tweeted nude the nude photo. The actress was alerted to the incident by a fan, which led her to remove the photo from her public timeline. 

This is for you @meganraee You rock! Xxx A, she tweeted in gratitude to her fan. When her 100,000 followers started responding to the photo she quickly deleted the tweet and send out a cropped version with no comment. She then went on to ask her fans to delete any copies of the photo that were made.

He who be without sin cast the first stone. If you have never messed up or done anything wrong in your life, then please, feel free to judge me.I'm a human being and we make mistakes, she told the Global Grind following the incident. She said the mishap is not behind her and she is looking forward to the new season of 90210 and the Sundance Film Festival next week.  

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PHOTO: Twitter/Socialite Life