Sing a song

While driving to work today, I heard the following two songs in a row.
Girlfriend by Avril Lavigne
Don’t Cha by the Pussycat Dolls
Give them a listen and you will see that they have the same plot. The basic premise is that my current girlfriend isn’t good enough, and that I would be better off with the singer. (Yes, I’m using the personal pronoun there. This is my blog, I can project if I want.)
Is this a common theme in bubblegum pop? Is this also giving men (me?) false expectations?