Was Lil Mama's TLC Performance a Worthy Tribute?

One of the most memorable performances of this year's American Music Awards came from iconic '90s girl band TLC, despite the fact that original member Lisa "Left Eye" Lopes passed away in 2002. In her place was Lil Mama, who also played her in last month's VH1 biopic about the girls. While it was a fun blast from the past to see Rozonda "Chilli" Thomas and Tionne "T-Boz" Watkins back on stage singing "Waterfalls," I'm not sure Lil Mama was up to the challenge, since she seemed like she ran out o...