Apart from her recordings, Vandi starred in the Greek version of the musical theater show – "Mamma Mia!", playing the role of Donna. Vandi's performance as Donna was well-received among critics and audience. "Mamma Mia!" continued its success in the summer of 2018, with a big tour all around Greece. The show ended up doing a total of 300 shows and selling more than 100,000 tickets in the span of two years. (2016–18). Vandi continued her musical career starring in the star-studded musical show "To Diko Mas Cinema" (2019), directed by the famous creative duo Reppas - Papathanasiou. As expected the show was a huge commercial success selling more than 90.000 tickets during the summer of 2019. It was the biggest commercial hit of the Greek summer theatrical season. Inspired by the musical, she released the album "To Diko Mou Cinema" (2019), including covers of notable songs from popular Greek films produced in the 1960s and 1970s.