Well the one group that I worked with was the Four Tops. I conducted more for them.  And the Four Tops -- I actually had some wonderful stories with those guys. Because they were a group of guys that was together making music because they loved to make music together and they were beautiful people too. And they told me some wonderful stories and I heard recently that they were -- after they moved to California Billy Eckstine wanted to record with a group like the Four Freshmen, but he couldn't get them but the Four Tops were there. So said "can you guys sing like the Four Freshmen? " They said "sure we can. " And they went in for an hour or so and worked on some stuff and came back out and said okay this is it. And they sang some stuff like the Four Freshmen.  And then they made a whole CD together with those guys singing behind him. They were like that. They were guys that really loved to work together They had had a great experience together, good and bad. And I conducted for them and did some writing for them and I really liked those guys.