nile rogers, you know, he's playing on this daft punk single i idolize him. he talks about when he was -- he came from a rough, rough place and when he wrote ♪ good times or "we are family" it wasn't that's where he came from, he wrote the future he wanted to live in. he wrote those so he could have those good times. so i think a love song can be defined. it can be the biggest protest song you'll ever write, topical song. we don't write that many. we've written a few. "sunday bloody sunday," every few years one arrives but i'm certainly suspicious of it because i know the problems of the world are the problems of the human spirit and the problems of the human spirit are the problems of the human heart and hypocrisy of the human heart. that's what you're looking at across this table, charlie rose. because i have it. we all have it. we're afflicted by it. >> rose: have you written the perfect song in your judgment? >> oh, no. god. >> rose: would you know? >> oh, i think so because i know ones that are perfect. the supremes "baby i love you." "i can't get no sat