This songs I was a hit because it now original glee, and it's first original with Glee... Because other songs are not original they are copy but it's hits songs vary popular... This songs give me vary dancing and also happy mood. and is sounds is vary amazing! With Sue Sylvester is not very happy this songs because Glee Students make they our idea to make Sue not never win again. And now is original songs of first time. We love Glee!
On its own I can understand why people would be a bit skeptical about the quality of the lyrics etc, but in the context of the episode this featured in, definitely one of the best performances for me. Cute, fun, sincere and true to the show.