The American Idol alum believes losing weight improved her singing abilities.
After giving birth to her son David back in 2009, Jennifer dropped 80 pounds with the help of Weight Watchers.
She told TV show Daybreak:
"When I was in high school, I could do (sing) the whole piano. Now I've lost weight my voice is getting back to that same state."
Last week we posted this picture of Jennifer showing off her super-thin frame. Do you think she's looking healthy these days?