Chenoa Diego Torres Emilia Mernes TINI Lali Espósito Maléna Fox Alec Benjamin Dave Benton Rolf Harris Murray Cook Greg Page Darren Hayes Christine Anu Kylie Minogue Amy Shark Joel Smallbone Courtney Act Daniel Johns Elvana Gjata Eleni Foureira Aaron Carter 347aidan Acacia Kersey Adrienne Bailon Adibah Noor Adam Lambert Aitana Aiko Aidan Bissett Agnetha Faltskog Akihiro Miwa Alex Aiono Alessia Cara Alessandra Rosaldo Bryana Salaz Bryan Ferry Brooklyn Wyatt Britney Spears Brianna Leah Brian Littrell