When yesterday at the welcome party the host of this year's show asked Sonja whether she likes to sleep a lot - as Sonja means 'a person who sleeps a lot' - then she replied that it was so indeed - she likes to sleep 10 hours a day.
Well, her song is a dreamy ballade as well in the best sense possible - it's a slow but powerful ballade.
However, she did experience some problems with her headphones as she couldn't hear her voice very well.
But in the end, she seemed to feel really good on stage and vocals were once again - as almost a tradition at the Junior Eurovision Song Contest - top notch.
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The next contestant to rehearse is Ukraine's Yuliya Gurska with the song Mii Litak.