No doubt about it: pop singer Gwen Stefani is joining a galaxy of stars helping to raise money for President Barack Obama's re-election campaign. The Hollywood Reporter said Monday that mother-of-two Stefani will host a "family day" event on Sunday August 12 at her Beverly Hills home, to be attended by First Lady Michelle Obama. "A family of four can join the first lady and their hostess for a day of child-friendly campaign fun for just $1,000," it said on its website (www.hollywoodreporter.com). "A $5,000 donation gets mom, dad and the presumably Democratic kids additional face time with Michelle and Gwen -- a kind of progressive play date." A raft of showbiz and fashion celebrities have come out in favor of Obama's bid for a second term in the White House, with the likes of actor George Clooney and Vogue editor Anna Wintour hosting chic fund-raising events. Singer-songwriter Stefani, 42, fronts the pop group No Doubt in addition to her own solo recording projects and a second life as a fashion designer. Last year she gave $1 million to help Japanese tsunami victims.