The `Brokeback Mountain` actor - who is currently promoting his new movie `Love And Other Drugs` in the British capital - flew the country music star in by private jet on Friday night (12.11.10), and the pair were said to be holed up in London`s exclusive Dorchester hotel until yesterday (14.11.10) morning.
Taylor - who has dated `Twilight` actor Taylor Lautner and Disney star Joe Jonas in the past - was due to be in the city to perform at the Radio 1 Teen Awards yesterday, but jetted in early to see Jake.
An insider told The Sun newspaper: "Jake wanted some quality time with Taylor. If he hadn`t done this, they would have missed each other as he had to fly back to the US. He hired a jet which would have easily set him back £100,000."
Rumours about the new couple have been circulating since they were spotted holding hands and looking loved-up while on a romantic walk around Brooklyn, New York, last month.
A source said at the time: "Taylor and Jake were walking around Park Slope holding hands. They looked like a couple!"
Jake - who split from actress Reese Witherspoon last December after more than two years together - has also dated stars including Natalie Portman and Kirsten Dunst in the past.