Yahoo's celebrity gossip channel, "Yahoo Omg!" tweeted its list of 18 celebrities they loved on Twitter in 2013.
One star who was left out -- comedian and very active Twitter user Rob Delaney -- was quick to let Yahoo and the selected celebrities know he wasn't happy about being excluded.
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His tweet set off an elaborate exchange with the tagged celebs such as Josh Groban, Anna Kendrick, Dwayne "The Rock" Johnson and Zach Braff. Each one contributed in making the thread more and more ridiculous with each incoming tweet.
It's a little difficult to follow on your feed, so we gathered them all up here for you to really appreciate the glory of Anna Kendrick discovering she might be Olivia Wilde's baby daddy.
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BONUS: The 10 Most Epic Celebrity Twitter Fights
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