. >> the best example is, a composure by the name of irving berlin. he knew how to do it.he wrote a song, it was simple, and profound at the same time. very lasting. you never get tired of hearing a great irving berlin song. >> simple, profound and lasting. part of the ingredients of a great song for you. >> you had a lot of collaborations. you have been hanging out with lady gaga. the white house. >> she is wonderful. >> you have collaborated with so many. what is it about collaborations that you enjoy? it is the individual talents. certain people have. they knew how to do it. lady gaga, she doesn't even realize to this day how great she really s i think she will be around for a long time. i think she will do very well in films, she is a wonderful person, very honest. and very educated. she plays wonderful piano. she composes. she records. more than anything else, the public adores her. they love her. i think hopefully, she will be around for a very long time. and be very popular. >> you mentioned lady gag aperhaps during a film into the future. which raises the question,