On November 21, 2016, Kendrick, Billy Eichner and James Corden sang a soundtrack to growing up,
from the birth to the first love to graduation to marriage, in a hilarious segment from The Late Late Show.
Although the real-life Eichner fits the same description,
he's not nearly as unhinged as his Billy on the Street persona, who bombards people on Manhattan sidewalks with questions about the differences between Kris Jenner and Geppetto.