The peppy songstress joined Corden to proclaim that 2016 was "All About That Change." "Yeah, it's pretty clear--I ain't no size two," sang Corden. "But I just joined a gym, like I'm supposed to do."

The duo made other riffs on our culture of "New Year, New Me," a welcome respite to your friends' declarations that this year will be different. Some points they address: drinking more water and less alcohol to avoid drunk-dialing.