That's a particularly pointed comment to make because a week before, I saw a number from Mean Girls performed on The Tonight Show with Jimmy Fallon and it was not only wonderful, but it made me intrigued about seeing a show I didn't have much interest in.
Similarly, I can figure out why it wasn't used on the Tony show -- it's a solo number performed by a secondary character. But boy would it have helped sell the show. I am sure on stage it's a showstopper. I tracked down the video online, and while most of the comments were in high praise of the performance, many were critical of the lyrics. But they missed the point -- the lyrics are quite wonderful, being sung by an angry, teenage girl and struck me as perfectly spot-on in character, phrases falling over one another in bursts as she spits out her fury. The score is by Neil Benjamin and composer Jeff Richmond -- husband of Tina Fey who wrote the original movie and also the book to the musical.
This is Barrett Wilbert Weed with "I'd Rather Be Me."