A Scotland Yard spokesman said: "John Massey has this afternoon, Friday June 29, been arrested by detectives from the Metropolitan Police Service specialist crime and operations command.
"He has been taken into custody at a north London police station."
He was found following an intelligence-led operation, the spokesman said.
A second man was arrested on suspicion of aiding and abetting an absconder and was also taken into police custody.
The Prison Service is investigating how Massey managed to elude staff.
More top news
The veteran singer showed even the greats have their off days when she had to stop halfway through and apologise to the audience.
So-called Islamic State fighters have re-entered the historic city of Palmyra in central Syria, activists say.
The driver stopped at the scene and the boy was taken to hospital, but he died on the way.