Keith Urban had never seen a sign in the crowd quite like the one he spotted from the stage on Friday (Nov. 11) in Nashville. A woman asked the singer to "sing her into labor," and surprisingly, Urban obliged.

Well, he did his best. If a newborn isn't popping out to hear Urban sing even more of "Blue Ain't Your Color," then he's probably just not ready. Watch the video to see Urban serenade two Nashville women and one bulging baby bump. He chose that song upon learning she'd be having a boy, and of course, he got creative with the lyrics.

Later in the show Urban would sing the full version of his latest single. It was part of a nearly two-hour set that reimagined hit songs and introduced new material from the Ripcord album. The Ripcord Tour stop was anything but a greatest hits lesson. Deep cuts songs like "Sun Don't Let Down" (featuring rapper Pitbull, courtesy of computer) and "The Fighter" (featuring Carrie Underwood in the same fashion) were part of seven songs from his album.

Maren Morris joined Urban on stage to sing "We Were Us," while opener Brett Eldredge sang "Somebody Like You" with the CMA Entertainer of the Year nominee. Later, Eric Church surprised fans with a cameo, singing his own song "Record Year" and then "We Were Us," his duet with Urban.

We can only assume the unborn bundle of joy loved every minute of it.

See Photos From a Ripcord Tour Stop in Massachusetts 

7 (More) Unforgettable Keith Urban Moments