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When one is singing along to the radio with friends, one should perform a surprise solo.

While listening to a radio or otherwise loud music, and someone is singing along, you sneakily turn off the volume while they aren't paying attention. Now said person is singing along to the song, but without the song playing; a surprise solo.

***Best performed on a bad singer.
Jim: Dude, we were in Sarah's car listening to Firework, then I turned off her radio while she was mid song.

John: Surprise solo?

Jim: Yeah. I didn't know she was so bad at singing!
by JayDizzle12 May 10, 2011