Watch The Sing-Off Season 4 Live Stream As The Top 7 A Cappella Groups Compete On NBC

A new episode of "The Sing-Off" season 4 is nearly upon us, and now fans can watch the live stream via NBC live streaming for free online.

Tonight, the remaining seven a cappella groups will relive hits of generations past on "The Sing-Off" season 4.

For NBC, there is a live stream of the channel which can be accessed here or here (depending on your region, one may be accessible over the other) and through that, fans can watch "The Sing-Off" season 4 premiere live stream!

There are a lot of fake channels solely for the purpose of luring viewers with ads, but here is how you can avoid any potential hiccups with pop-ups and ads.

--Do not download anything that is suggested.

--For every ad, there is an "X" button. It is typically in a corner or out of the way so it is hard to see. Sometimes ads try to fool you by giving you a fake "X" graphic which leads you to an ad. Do not be discouraged when this happens, the real "X" button is there somewhere.

--Multiple ads will pop and it takes a little bit to clear out each and every ad. Even then, pop-ups will occur as you clear the ads. Do not listen to any of these ads or pop-ups and clear them right away.

--"The Sing-Off" season 4 live stream will have recurring ads that pop up every once in a while. If this is the only way you can view "The Sing-Off" season 4, do not be deterred and the live stream will work once the ads disappear.

Be sure to check out "The Sing-Off" season 4 tonight on NBC!