Adcock was first signed to Island Records at the age of 22 by noted record producer and A&R man Denny Cordell.
Denny's | Cordell Hull | Denny | Denny McLain | Denny Zeitlin | Denny Hulme | Arthur A. Denny | Arthur Denny | William Denny and Brothers | Martin Denny | Denny Miller | Denny Doherty | Denny Chin | T. Denny Sanford | Sandy Linzer and Denny Randell | John Denny | Denny Teresi | Denny Regrade | Denny Lawrence | Denny Laine | Denny Island | Denny Delk | Denny Cordell | William H. P. Denny | William F. Denny | Thomas Denny | Paul Denny | John Denny (Medal of Honor recipient) | Harmar Denny | Frank Cordell |
Lewis' UK chart-topping effort of four production credits exceeds those notables such as Phil Spector, Mickie Most, Denny Cordell, Phil Coulter and Albhy Galuten, all of whom only managed three such Number Ones.