The two-time Grammy winner took the stage at the MGM Grand in Las Vegas to perform a medley of some of her top hits. However, some fans noticed she made a slight adjustment to one of the lyrics in her song "Little Red Wagon."
Instead of singing "I live in Oklahoma" like she does in the original version, Lambert belted out the words "I got the hell out of Oklahoma." As country music lovers will recall, Lambert lived in Oklahoma with Shelton during their four-year marriage.
Of course, several fans picked up on the small tweak.
"Miranda Lambert just sang ‘got the hell out of Oklahoma' with Blake Shelton in the room and I have so much respect," wrote one Twitter user.
"HAHAHAHAHA MIRANDA LAMBERT SINGING ‘I got the hell out of Oklahoma' AT THE ACMS IS A MOOD," wrote another.