These days, almost 60 percent of American households now hire a nanny for their kids. With the recent prevalence of nanny shenanigans in the news (Gavin Rossdale and Gwen Stefani, Ben Affleck and Jennifer Garner), parents are beginning to wonder if they should be concerned about who they have brought into their homes.
The family that plays together, stays together -- and in the case of No Doubt's Gwen Stefani and Gavin Rossdale of Bush, that means occasionally popping up onstage for surprise duet renditions of your dearly beloved's greatest hits.