Bill Clinton to headline first rally for Hillary this weekend

Former President Bill Clinton will headline his first rally for his wife's presidential campaign on Saturday. He plans to address supporters of Hillary Rodham Clinton's second White House bid before the Iowa Democratic Party dinner in Des Moines.

The gathering is an important stop for presidential candidates seeking support in the early caucus state.

Former US President Bill Clinton/ Reuters

The former president will be joined by pop star Katy Perry, who endorsed Clinton earlier this year.

After largely staying off his wife's campaign, Clinton has taken a more active role in recent weeks. He's begun raising money for her bid at events across the country. With the highest favorability of any living president, Bill Clinton is considered one of his party's most effective messengers.