Pixie Lott "Gravity"

I'm really into Pixie Lott's fourth single, "Gravity." It reminds me a lot of Natasha Bedingfield's "Unwritten." It's interesting that all of her four singles have been really different, starting with the retro-soul of "Mama Do," then the upbeat electro of "Boys and Girls" that sounds like something Girls Aloud or Sugababes would do, then back to the old soul soul, but slower this time for "Cry Me Out."