British pop/soul star Jessie J showed up and showed all the way out this past weekend on Saturday Night Live. I knew that she could bring it from seeing her perform on other stages before, but I was ill-prepared for the hurting she put down Saturday night on my television screen. Both of her performances were energetic and engaging, but most importantly she sang her face off and effectively showed these pop tarts of questionable talent like Rihanna, Katy Perry, and Ke$ha to their seats. Class was surely in session. Check out her second performance of the song "Momma Knows Best" below and her live rub-a-dub version of "Price Tag" with B.o.B. after the bounce.