Body Language Expert Noticed Something Unexpected About Miranda Lambert At The ACMs

"Elle King seemed nervous during her duet but she's pregnant so it may have been physical stress," Hoelscher told The List. "She struggled to breathe between lyrics and was very flushed, losing her focus on the camera at times." King's possible physical stress may have, in turn, worried Lambert. Lambert, as Hoelscher noticed, "glanced at King as though checking on her during their duet." That may have prevented her from concentrating as much as she otherwise could have on the music. 

On the other hand, the "Bluebird" singer "seemed more relaxed during her duet with Chris Stapleton, which was unplanned." When Lambert performed "Maggie's Song," she "seemed to just roll with Stapleton and get into the music." Hoelscher, however, was quick to add that there's more than one reason that Lambert may have been more at ease with Stapelton than with her long-time friend, King. "Possibly [it was] because she didn't feel any pressure to deliver on an act that wasn't her responsibility."

While performing with Stapleton, Lambert was filling in for Stapelton's wife, Morgane. Morgane bowed out of the ceremony, last-minute, "due to a 'prior doula commitment," as per what People reported.