Mamma Knows Best // Jessie J (cover) Nov 30, 2016 Cover, Cover Jessie J, Cover Mamma Knows Best, Cover Pop, Who You Are, Who You Are (platinum edition), my cover of The AMAZING Jessie J’s Mamma Knows Best. Like 0 Thanks! You've already liked this « All Of Me – Cover – Gigi Odem » Kad Odem – Djordje Balasevic COVER via Kajsa Unplugged