impromptu performance
Definitions
A musical or theatrical presentation that is created spontaneously without prior preparation or rehearsal.
An unrehearsed act or performance delivered on the spur of the moment.
Examples
The street musician delighted the crowd with an impromptu performance of a popular jazz standard.
During the wedding reception, the bride's brother surprised everyone with an impromptu performance on the piano.
Synonyms
extemporaneous act unrehearsed show spontaneous presentation improvised performance off-the-cuff routine
Antonyms
scripted performance rehearsed show planned presentation choreographed act prepared routine