Wednesday 19th December 2012 by Ashley Clements | Photos by WENN.com

Tags: Pink

Celebrities have been taking to Twitter to react to Instagram's new Terms of Service, which states that the company can use posted photos as advertisements without telling the user.

Several stars including Pink and Michelle Branch are amongst a whole host of stars who have taking to Twitter to vent their anger at the new policy.

Pink tweeted: "I WILL BE QUITTING INSTAGRAM TODAY. WHAT A BUMMER. YOU SHOULD ALL READ THEIR NEW RULES."

Other stars that seem to be upset by the new rules include Kim Kardashian, Coco Rocha and Olivia Wilde.

Michelle Branch also took to Twitter to say goodbye to Instagram: "Bummer about Instagram. Where will I post all my food pics now!? Haha. #RIPInstagram"

The new rules are set to take effect on January 16, 2013

Michelle Branch will have to post her food pictures elsewhere

Instagram co-founder Kevin Systrom tried to defuse the situation by explaining that the wording of the new Terms of Service was incorrect.

In a statement, Systrom said: "It is our mistake that this language is confusing. To be clear: it is not our intention to sell your photos.”

“Instagram users own their content and Instagram does not claim any ownership rights over your photos,” he added.“Nothing about this has changed.”

Photos: spectacular live shots of Pink in action on stage