"I don't want to be 35 years old and still popping out songs in miniskirts and la-la-la"

In this quote, Holly Valance is expressing her desire to not be stuck in a particular image or style as she gets older. She specifically mentions not wishing to be 35 years of ages and still performing in miniskirts and singing shallow, recurring songs. This could be translated as her wanting to progress and grow as an artist, instead of being pigeonholed into a specific image or genre. She might also be expressing a desire for more substance and depth in her music, rather than just depending on her look and catchy tunes. In general, Valance is highlighting the value of creative development and credibility in the music market.