Sir Paul McCartney's mobile phone number is publicly available on his social media pages, and he has urged fans "text me".
A line in both his Twitter and Instagram bios reads: "Text me: +1(212)313-9547". The number has also been displayed on screens at some of his live performances, according to reports.
Fans of Paul, 81, who grew up in Allerton, have said after sending an initial text they have been signed up for a mailing list with occasional pictures and seasonal greetings.
