Biography
There are at least 2 artists named Markella:
1) Brought up in Greece and Hallingdal, Norway, Markella (Markella Assimakis) makes Nordic synth-based pop with Greek elements in the form of language, folk tones and timbres.
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2) Raised in both Greece and Cyprus, Markella (Markella Hadjimitsi) is best known for her time on the well-known and successful talent show "The Voice", where she was chosen by Sakis Rouvas.
Biography text from Last.fm, available under CC BY-SA.