Taylor Swift has been branded the Yoko Ono of One Direction.
There are fears the 22-year-old singer's relationship with Harry Styles might lead to the break up of the 'Little Things' hitmakers, in the same way John Lennon's widow was blamed for splitting up The Beatles in 1970.
"It's really not far off from the Yoko situation," a source said.
Comparisons between Swift and Ono, whom Sir Paul McCartney recently distanced from any blame following the group's split, have intensified since Styles travelled on the blonde beauty's private jet from New York to Britain, separate from the group, on Sunday.
"There was loads of room for the rest of the band in Taylor's luxury jet, but he didn't even suggest they travelled together," a source added to The Sun newspaper.
One Direction - also made up of Niall Horan, Zayn Malik, Louis Tomlinson and Liam Payne - had to fight their way through a crowd of screaming fans at London's Heathrow airport, which saw Payne given a painful Chinese burn by one of their overly enthusiastic supporters.
Styles, 18, has also been warned against hurting Swift, who is known for penning heartfelt songs about her ex-boyfriends, to avoid being the subject of one of her future hits.
"If you're going to do Taylor Swift wrong as a boy, you'll wind up in a song," said Troy Tomlinson, head of the 'I Knew You Were Trouble' hitmaker's Sony Nashville label.