The singer - who was recently confirmed for a Las Vegas residency - will be interviewed by the comedian as part of the promotion for her comeback single 'Work Bitch'.
Confirming the news on her Twitter page on Tuesday night, she wrote: "Making a trip across the pond in a few weeks to see @chattyman and all my lovely UK fans...can't wait! xo."
The interview marks Britney's first appearance on primetime British TV since performing 'Womaniser' on 'The X Factor' in 2008.
However, Alan probably shouldn't expect too much out of Britney, as Simon Cowell recently said that one of the reasons she was dropped as a judge on the US version of 'The X Factor' last year was because she didn't talk.
She is the latest in a long line of A-list stars bagged by Alan. Earlier this month Miley Cyrus appeared on the chat show, and he will also be joined by Rihanna and Justin Timberlake for his 100th show this Friday.