After making Ram, McCartney recorded a big-band instrumental version of the entire album – but didn't release it until six years later, under the pseudonym of Percy "Thrills" Thrillington. A press release described its alleged creator as "a puzzle and so far no one has all the pieces." McCartney kept Thrillington's actual identity secret until 1989, when he spilled the beans at a press conference. "Now the world knows!" he told his interrogator. "You blew it!"