Of George Clooney’s Karaoke on Gwen Stefani’s ‘Hollaback Girl’

When the “shit goes bananas.”

George Clooney and Julia Roberts singing to Gwen Stefani’s ‘Hollaback Girl’ has all the makings of a viral video.

With over 12 million views since it was published on 4 May, the three mega stars appeared on the Carpool Karaoke segment of James Corden’s The Late Late Show.