Exclamation with a flourish

• "How about that!"
• Cry before curtsying or taking a bow
• "VoilГ !"
• "And ... there you have it!"
• Sound upon the big reveal
• Unveiler's shout
• ''Et voila!''
• "Here it is!"
• Cry that's often sung

Wiktionary Word definitions in Wiktionary
interj. (alternative spelling of ta-da English)