index," one mother's angry response to miley cyrus' raunchy PERFORMANCE ON THE VMAs. Her open letter to her daughter is burning up online, wracking up millions of views. Cecilia vega has the story of... See More
index," one mother's angry response to miley cyrus' raunchy PERFORMANCE ON THE VMAs. Her open letter to her daughter is burning up online, wracking up millions of views. Cecilia vega has the story of tough love. Reporter: The shocking, over-the-top moves, of miley cyrus dancing with robin thicke ON THE VMAs, HAVE SPARKED HUGE Reaction and dismay. Now, one mother has taken the moments and penned an open letter that's gone wildly viral. Dear, daughter, I'm going to fight or die trying to keep you from becoming the miley cyruses of the world. Reporter: Her daughter grew up watching cyrus as hannah montana. Always been jealous of me. Reporter: But now thinks the 20-year-old's shocking transition is a ply for attention. One she is warning her daughter not to emulate. I will run up and twerk in front of you, so you see how ridiculous twerking looks. Miley is an example I use with my kids. And we have to use these teachable moments. Reporter: Her letter of tough love has created an online frenzy. Miley cyrus is not edgy or cool or sexy. She is a desperate girl screaming for attention. Notice the tell me I'm pretty. See how hot I am. Reporter: One reader saying, amen, sister. I love the momma bear approach. But then there were those, who felt that keller's tough love is just tough judgment. Very easy for parents or younger children teenager to say how it should be. She is not a role model. But she's in the public eye. If I could say anything to miley, I would say this, you don't have to do this to get attention. Reporter: But this morning, the pop star suggests her dad felt differently. She's a good kid. Reporter: Tweeting her a quote from her famous father. I would have done the same thing you did. Dad. For "good morning america," bianna golodryga, abc news, new york.
This transcript has been automatically generated and may not be 100% accurate.