Viola!

voilà

interjection There it is; there you are. Used to call attention to or express satisfaction with something that has just been presented or accomplished. Taken from the French for "look there," though often spelled without the accent mark in English. (Pronounced /vwaˈla)/, with emphasis on the second syllable.) Finally, you just turn this crank to set it into place and—voila! The machine is ready to go. "Voilà!" said the magician as he pulled the girl's card from his pocket.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

Viola!

verb
See Walla!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
See also:
References in classic literature ?
"Viola! It is not the key, but it will open it at a pinch." He slid back the roll top, and ran a rapid eye over the neatly filed papers.
Viola's face is on a 2012 postage stamp, and soon, Canada's $10 note will feature Viola! These things let us remember Viola's fight for equality and reminds each of us to live it as well.
The Sea Coast'] Viola! [dissolve to a long shot from behind as Viola walks across a vast, empty shore towards the tree-lined mainland.