The claims come from excerpts of Earl Spencer’s memoir, *Swan Song: Diana, My Sister*, which are published by multiple outlets. Spencer writes that King Charles sounded “giddily elated” during a phone call after Princess Diana’s death.

The reports agree that these excerpts are newly released, with several describing the material as “bombshell” or “astonishing,” while others focus more directly on the specific quoted description of Charles’s tone. Coverage centers on what Spencer says Charles conveyed in the immediate aftermath of Diana’s death, rather than on any response from Buckingham Palace or other officials.

Across outlets, the emphasis varies slightly: some foreground the general characterization (“giddily elated”), while others specify that it was communicated during a phone call. All sources attribute the allegation to Spencer’s book and note that it is being shared through excerpts in a tabloid publication before broader reporting.