Michelle Obama talked parenting with David Letterman on his late night show on Thursday and revealed that one of the first daughters is a real Grumpy Cat.

The first lady was making her fifth and final appearance on the Late Show With David Letterman before he retires next month, the old friends were soon comparing notes about coping with moody teenagers. Although she spilled the beans to revealed that one of the first daughters is occasionally a real Grumpy Cat and the other is Salty biscuit, she did not say who was which. As a parent she knows they probably were watching and saying, NO MOM!” She save the day by not saying who was who.

Read more: http://www.dailymail.co.uk/news/article-3063235/So-daughter-Grumpy-Cat-Michelle-Obama-trades-parenting-tips-David-Letterman-reveals-one-kids-real-Salty-Biscuit.html#ixzz3YzdaDs4c