Bob Dylan follows in our footsteps

Some - good bloody god - six years after No Rock went to the Beatles' childhood homes, Bob Dylan's popped in for a look about.

The only question about the BBC's news story:

Dylan unnoticed on Beatles tour

Folk legend Bob Dylan mingled unnoticed with Beatles tourists during a minibus tour to John Lennon's childhood home.

If he was "unnoticed", how exactly did someone manage to tell the press about him going?