Paul Was In Los Angeles in June, 1966

I have been exploring the KRLABeat archives and I found another important bit of information.

The magazine had a column called, "'In' People Are Talking About . . .".  In the July 9, 1966 column, they wrote the following:  "['In' People Are Talking About . . .] . . . Paul McCartney's stop-over in L.A. and how in the world he pulled it off."

There was an approximately two week lag time between an event described in The Beat and the magazine's publication which would put Paul in L.A. sometime around the week of June 19-25, 1966.  The Beatles' schedule on that week was:
1.)  Two off days on June 19th. and 20th.
2.)  Work at the London EMI Studo on two songs for the Revolver album.
3.)  ~ two more days off on June 22nd. and 23rd.  (Although some sources said the 23rd. was a travel day
      to Germany.
4.)  The German concert tour of Munich, Essen, and Hamburg.  Our Paul was beginning to be replaced
      starting with the German tour:  he definitely played Munich; I'm still tracking down Essen; and there was
      a replacement for Paul in Hamburg.

The questions are:  What day or days in June, 1966 was Paul in Los Angeles, and--most importantly--why was he there?