Exuberant and youthful where Adele possessed gravitas, providing fizzy fun where Natasha Bedingfield offered nothing but cool class, Pixie Lott split the difference between these two British soul divas, finding her own niche as a pop-soul singer with classic roots but a sweet, stylish attitude. This cheerfulness brought her immediate success in Britain when she debuted in 2009. Her first two singles, "Mama Do (Uh Oh, Uh Oh)" and "Boys and Girls," went to number one in 2009, setting the stage for her successful full-length debut, Turn It Up. Lott may not have managed to crack t...