“This is her way to feel close and connected to him.” I revealed in May how Taylor and Joe had been dating undercover for months.
Since then, the pair have only been pictured together publicly once, having coffee on a balcony in Nashville in June, when she was also seen wearing the necklace.
The BEATLES legend was FOO FIGHTERS frontman DAVE GROHL’s man in shining armour after he fractured his leg two years ago.
Taylor even wore the chain, which he gifted to her early in their relationship, while being a bridesmaid for best pal Abigail Anderson in Massachusetts last week.
A music source said: “Taylor and Joe are suffering some lengthy spells apart now she’s making her pop comeback.
Macca stepped in to arrange surgery to get him fixed up.
Dave revealed: “He and his family basically set up my entire surgery in London after I broke my leg. “I wouldn’t be playing music if it wasn’t for Paul Mc Cartney because I learned how to play guitar with Beatles songbooks and playing along to Beatles records.