Dennis DeYoung Performs the 1983 Styx hit, Mr. Roboto. Mr. Roboto is a song written by Dennis DeYoung of and recorded on the Styx album Kilroy Was Here. In the U.S., it reached #3 on the Billboard Hot 100. It also was the final straw in an internal conflict that lead to Tommy Shaw leaving the band for many years. It also taught millions of music lovers the Japanese use of thank you "Domo Arigato"