72andSunny is working on a new campaign for Google Chrome. Until now, much of the brand's messaging has come out of Publicis' Groupe's BBH. Google traditionally taps a roster of shops on a project basis. Mullen has created work for the Nexus tablet; Johannes Leonardo, which was behind the recent "Project Re:Brief" effort that updated classic ad slogans for the digital space. Google spent $72.2 million on measured media for Chrome between January and November of last year, per Kantar Media.