Quit singing?

Not very likely. Have you heard her in anything other than Glee? She is a very accomplished singer. Once you are a musician, including singer, you don't just give it up.

At least most of us don't just give it up!!

..*.. TxMike ..*..
Take a risk, Take a chance, Make a change. Kelly Clarkson - Breakaway

I did see and hear her sing anything inside and outside of Glee and I know she's a very accomplished singer. But the problem is that she failed to guest appear in Glee's series finale by unknown forbidding situation for no reason at all.

Interesting. Does anyone have background on that? That sounds weird.

I agree with TxMike. A musician rarely stops, even if she might stop making product you consume. She still sings for herself and at various events. I saw a YouTube video of her singing "Gasoline and Matches" with Laura Benanti. It was good.

I heard she had a serious injury to her eye during Supergirl production, right before the Glee Finale.

They are going to be doing a musical Supergirl/Flash crossover in the spring.