Most people performing Karaoke simultaneously

Most people performing Karaoke simultaneously
Who
Bristol Motor Speedway
What
160000 people
Where
United States (Bristol, TN)
When
The largest karaoke took place at Bristol Motor Speedway in Bristol, Tennesse, USA on 22 August 2009 when 160,000 people simultaneously sang "Friends in Low Places" by Garth Brooks before the start of the NASCAR Sharpie 500 race.