Maryland Gov. Martin O'Malley talks last month with Bob Shieffer on "Face the Nation" on CBS. (Photo by Chris Usher/CBS News vias Getty Images)

Maryland Gov. Martin O’Malley (D) has been booked as the keynote speaker at a Massachusetts Democratic Party awards reception in May.

The event is the latest in a string of out-of-state speaking engagements planned by O’Malley in coming months as he prepares for a possible 2016 presidential bid and campaigns for other Democrats around the country.

O’Malley is scheduled to travel to Boston on May 27 to address the annual reception.

“I know Governor O’Malley’s record of accomplishments and Democratic values will resonate with Massachusetts voters and we’re excited to welcome him to Fenway Park,” Tom McGee, the state party’s chairman, said in a statement.

O’Malley also has previously announced appearances scheduled at the California Democrats State Convention in March and the Wisconsin Democrats Founders Day Gala in April.

O’Malley said in an interview published last month that he is moving ahead with preparations for a possible White House bid and that, if he is going to lay the groundwork for a national campaign, he can’t wait for former secretary of state Hillary Rodham Clinton to decide whether she is running.