sentences:  In February 1956 with the recommendation of Cleveland’s genius DJ, Dr. Bill Randle, they signed a long-term contract with Mercury Records.Somerville performed eight years with The Diamonds, singing lead on all sixteen of their "Billboard" chart selections, peaking with the song "Little Darlin';" for eight weeks, this selection remained at #2 on the charts, becoming the third best selling single record of 1957.Multiple appearances on "American Bandstand", "The Perry Como Show", and "The Steve Allen Show" increased Dave's visibility.