 Complete the following phrase:  In addition to the performances from the competitors, the show featured guest performances by former Belarusian Eurovision contestants Aleksandra and Konstantin 2004, Angelica Agurbash 2005 and Polina Smolova 2006, former Belarusian Junior Eurovision contestants Ksenia Sitnik 2005 and Andrey Kunets 2006, former Eurovision Song Contest winners Carola 1991 and Marie N 