A 20-year-old college student underestimated the power of the internet ? and now she has to go to class dressed like a Christmas tree for a week

Business Insider - On Saturday, Kelsey Hall wrote on Twitter that if a picture of herself dressed in a Christmas tree costume got 1,000 retweets she would wear the costume to class for the rest of the semester. The tweet went viral, reaching over 1,000 retweets in one day. So far, the 20-year-old University of Alabama student has kept her promise to wear the costume to class. She wrote on Twitter that this is her "biggest regret in life." On Saturday night, Kelsey Hall, a student at the University of Alabama, jokingly tweeted a picture of herself in a Christmas tree costume along with the caption, "1,000 retweets and I'll wear this to all my classes for the rest of the semester." 1,000 retweets and I'll wear this to all my classes for the rest of the semester pic.twitter.com/uzIDepK43k ? Kelsey Hall (@kelseyhall1313) December 3, 2017  The 20-year-old college student told BuzzFeed news that she didn't think anything would happen, but her tweet unexpectedly went viral. Lookin