Miley Cyrus, 29, brought out a very special guest for her NBC event “Miley’s New Year’s Eve Party” on Friday night. During the celebration, which was held in Miami, Florida, Cyrus surprised the crowd by introducing her sister, Noah Cyrus, 21. The two walked hand in hand onto the stage as Miley Cyrus shouted, “Welcome to the stage my baby sister!” Noah and Miley Cyrus then began belting along to Dolly Parton’s heart-breaking classic “Jolene.” Half-way through the performance, Noah Cyrus gave her sister a kiss on the cheek. The siblings also lovingly sang a few of the lyrics to each other. Fans seemed to really love the sibling duet. “This is probably the best that Miley has ever sounded. Her and her sisters harmonies are spot on,” one person commented on YouTube. Another fan wrote, “Miley and Noah’s voices together are POWERFUL.” Noah and Cyrus both rocked glamorous ensembles for their impressive duet. Noah Cyrus wowed in a high-slit, cut-out black dress. She completed the look with matching black gloves. The “Midnight Sky” singer wore a shimmery silver jumpsuit as one of her many outfits throughout the night. Miley Cyrus has frequently covered the track by Parton, 75, who is her godmother.