We're down to the final four on The Sing-Off. Who earned top grades this week? Good question. Let's find out!

It was R&B night on The Sing-Off. Read on for a rundown of the top performances and grades.

Puns were in full effect on The Sing-Off this week. What about talent? Read on for a review.

The Sing-Off performers battled in the streets this week. Sort of. Read on for our weekly grades.

The Sing-Off gathered its final 10 groups together this week. As for the performances themselves? We grade them here.

The Sing-Off delivered more of the same this week. Read on for a rundown of the latest acts and grades.

The Sing-Off covered a few current chart-toppers this week, including a couple songs heard on Glee. Read on for a rundown.

The Sing-Off went to college this week. We rundown all the acts and hand out our weekly grades.

The Sing-Off is back! We break down various acts in this season premiere review.