Yes, not kidz bop, regular songs they are just words and ideas in songs. Maybe DD comes home with questions about a song and I can take the opportunity to be her dad and teach her something.
The problem with explicit, objectifying, etc. content in music at the gym is that your kid might not even think to ask you about it. If my daughter and I are listening to the radio together, I can point out to her the songs that I find problematic and start a discussion ("Wow, the character in this song sounds really sad that she broke up with her boyfriend. She seems to be dealing with it by teasing other men, getting drunk, and eating Twinkies until she throws up. What do you think about that?" And yes, that is a real song that was in heavy radio play about a year ago.) At the gym, she could hear that song over and over and internalize the message without ever critically analyzing the content. I am against censorship and very liberal about my kid's media exposure, but even I don't like the thought of her listening to the stuff that's on top 40 radio without supervision.