The two will meet in Washington for two days. A Brown aide told The Times of London the meeting is aimed at presenting a united front against the "forces of global conservatism."
While in Washington, Brown will address a joint session of Congress.
In England, Brown has promised to clean up the banking system to ensure "banking responsibility" in Britain and abroad, the newspaper reported Saturday.
"We are exploring all the legal action necessary to recover pension payments from people who received too much," Brown said at a Labor Party forum. "Our task must be nothing less than to rebuild a financial system where it has failed, and then to create an economy in which banks are no longer serving themselves but are serving the public of this country."
Brown said Friday he would try to stop a pension of almost $1 million a year awarded to Fred Goodwin, a former executive with the Royal Bank of Scotland, one of Britain's largest baking institutions. The bank, which has been partially nationalized, this week announced it lost $34 billion in 2008 -- the largest annual corporate loss in British history -- the Los Angeles Times reported.