When I hear "chick music" I think bands like Journey and such. In which case, Journey should probably be on the list. Bon Jovi should probably be on there too like "Livin' on a Prayer."
If she does, in fact, mean female bands/lead singers I can't help much there. I know a popular song at my buddy's wedding was that "I'm Gonna Be(500 miles)" song. I don't really care for the song, but everybody split into two sides and they did this dance and a back and forth with the gibbberish lines in the middle of the song there. It was amusing at least. I never saw it as a party/wedding song before then.