During her Las Vegas performance, Adele paused the show upon recognizing her OB-GYN in the audience, revealing that he had delivered her baby 

Adele has had a number of special guests visit her Las Vegas residency performance,

but someone stopped by over the weekend who practically stopped the singer in her tracks.

 In a fan-shot video from Saturday night's event, Adele was crooning her popular 2015 single "When We Were Young" while dressed as Morticia Addams for Halloween when she saw a very special VIP in the crowd.

Adele was crooning her iconic 2015 single "When We Were Young" while dressed as Morticia Addams for Halloween ...

 in a fan-shot video from Saturday night's event when she saw a very special VIP in the crowd.

Her band continued to play, but Adele abandoned the song to talk with the MD, eventually returning to the stage and asking the audience, "Will you sing it for me?"

"That man delivered my baby!" she said of the OB-GYN who delivered Angelo, the singer's son with her ex-husband, Simon Konecki, in 2012.

Adele's Las Vegas residency has been filled with memorable events, from stopping it to assist a couple with their baby gender reveal to revealing her sciatica diagnosis and dubbing herself lover Rich Paul's "wife" at a recent show. 

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