Jessie J Performs On 'Britain's Got Talent'
Jessie J rocked the stage on 'Britain's Got Talent' on Thursday night where she performed a killer rendition of her song "Mamma Knows Best" from her debut album "Who You Are" - LOVE IT! Watching her perform it's like a witnessing a musical play. I wonder though why Jessie didn't sing on BGT her 'official' new single "Nobody's Perfect"...I mean, this song is still fighting within the Top 20 on the UK charts.