Mariah Carey gave her lambs a special treat on Thursday night, posting a video of herself singing the classic song, «Auld Lang Syne,» to ring in 2021. In the clip, Mimi appears to be standing outside in a sparkly silver dress with snow all around her. She then breaks into an a capella version of the song, stopping partway through to apologize. «I don't know how it goes,» she joked before finishing the song.Carey then addressed her fans, saying, «Never could pronounce it properly.