The largest karaoke took place on Aug. 22, 2009, in Bristol, Tenn., at the Bristol Motor Speedway when 160,000 people simultaneously sang Garth Brooks' "Friends in Low Places" before the start of the NASCAR Sharpie 500 Race.
|10,490 Singing to a Video Game|
The record for most people singing along to a video game was achieved by a group of 10,400 people at Los Premios Principales in Madrid, Spain, Dec. 11, 2009.
|48 Hour Marathon Performance|
When New Zealand native Karen Davy took the stage June 8, 2009, at the Auckland Airport, she wasn't up there to do one three-minute song and take a bow. Her performance lasted 48 hours.
|781 Hours, 31 Minutes for Group Marathon|
Davy's record seems like nothing compared to the longest marathon by a group of participants. The sing fest organized by Tim Wedgwood at the Castle Hotel in Ladybank, Staffordshire, England, lasted for 781 hours and 31 minutes (from Dec. 30, 2009, to Feb. 1, 2010).
|1.1 Million Online Users|
The world's most-popular online karaoke network is SingStar. The Europe-based site had more than 1.1 million users as of last year.
|1987 -- Year of First Karaoke Video Game|
Japanese toy and video game company Bandai -- the maker of Nintendo -- released the first videogame ever, Karaoke Studio, in 1987.
Karaoke Battle USA airs Fridays at 9 p.m. ET.