Kamen became a highly sought-after arranger in the realms of pop and rock music. His contemporaries in this field included Academy Award winner Anne Dudley, Richard Niles, and Nick Ingman. His successes include his work with Pink Floyd, David Gilmour and Roger Waters (he is one of the few people invited to work with both former Pink Floyd members, even after their acrimonious split), as well as Queen (orchestration on Who Wants To Live Forever), Eric Clapton (on Edge of Darkness), Roger Daltrey, Aerosmith (live orchestral version of Dream On for MTV), Tom Petty, Bon Jovi, David Bowie, Bryan Ferry, Eurythmics, Queensrÿche, Rush, Metallica (on the song "Nothing Else Matters" and their live album, S&M), Def Leppard, Herbie Hancock, Tim Curry, The Cranberries, Bryan Adams, Jim Croce, Coldplay, Sting, Guns N' Roses (on their performance of November Rain on the MTV Video Music Awards) and Kate Bush. For Bush, Kamen delivered an orchestral backing for "Moments of Pleasure" from The Red Shoes album, substantially building upon a simple piano theme Bush had composed. In this instance and many others, he conducted the orchestra personally for the recording. In 1984, two years after moving to London, Kamen had similarly heightened the effect of a pop recording for the Eurythmics "Here Comes the Rain Again", that score relying as much on his compositional skills as his arranging talents.