After thorough research, I couldn't find any information about a musician named Efi Georgakopoulou. It's possible that there might be a misspelling or confusion with another artist. For instance, there is an artist named Efi G., whose full name is Efthymia Giannakopoulou, known for her embroidery art. ([oldcentralcity.org](https://www.oldcentralcity.org/2024/02/15/11099/meet-efi-g-winter-arts-fest?utm_source=openai)) Additionally, Efi Thodi is a Greek pop singer specializing in traditional Greek and pop music. ([en.wikipedia.org](https://en.wikipedia.org/wiki/Efi_Thodi?utm_source=openai)) If you have more specific details or can confirm the correct spelling of the artist's name, I'd be happy to assist further.