Chumbawamba's "She's Got All the Friends" is a perky, poppy song loaded with backhanded compliments towards an Alpha Bitch ("She's got all the friends that money can buy", "Both her faces are so pleasing to the eye", etc.)
Taylor Swift did a double role as both the blonde Girl Next Door and the brunette Alpha Bitch (whom she antagonizes) in the "You Belong With Me" video
Her new song "Mean" is also at least partially directed at mean girls. The song itself is simply about bullies, but the video shows two examples of mean girls, one trio of girls who ostracize another for wearing the wrong colored bow, and the other a group mocking a teenaged girl working in fast food to save up for college.
The character Jordan Pruitt's song, "Miss Popularity", is about.
Emily Osment expresses her contempt for such a girl in her song "I Hate the Homecoming Queen".
The girl in the blue dress in the music video for Paramore's "Misery Business."
In the Fleming & John song "Ugly Girl", the girl singing appears to be an Alpha Bitch who is trash-talking her ex's new girlfriend who she considers ugly.
The rival in Saving Jane's "Girl Next Door". However, it is potentially subverted in that the protagonist does have a boyfriend, seems more of a loner, naturally, and is more edgy, wanting to "hit her", when the only indication of the rival purposefully bothering her is when she pushes her books, which might be imagined in a Dream Sequence. It gives rise to the possible interpretation that the protagonist is actually just insecure and jealous of a girl more popular than she is, and that the popular girl isn't a bad person at all.
Song itself shows nothing to make the listener believe this. Said girl might be a Mary Sue, but nothing indicates that's she mean in any fashion.
Red Union, a Serbian punk band, has "I Hate Girls Like You", about the protagonist trying to teach and help the Alpha Bitch to be a better person, but being frustrated by her shallow attitude and unwillingness to learn.
Deconstructed in Lana Del Rey's "This is What Makes Us Girls," ostensibly about Del Rey's small-town high school experience as part of a Girl Posse. The song itself actually casts a critical eye on the willingness of teen girls to turn against each other in favor of boyfriends and troublemaking, but she even describes them as "the only friends [she] ever had."
"All She Could Be" by Sarah Solovay describes an Alpha Bitch, describing her as "so pretty, but so mean, envied by the whole world" and "lives her whole life getting stuff for free," but paints her as an almost tragic character with "fake friends," describing her as being "smart but she doesn't do a thing" and asking "what happens when you're eighty and your pretty face has gone away?"