The difficult second album by Natasha Bedingfield, titled N.B., was released in April 2007. Her brother Daniel had already been there with Second First Impression which was nowhere near as successful as his first album Gotta Get Thru This. Since her debut album Unwritten, a whole series of similar female singers had broken through, including Amy Winehouse, Corinne Bailey Rae and Lily Allen and this was the market Bedingfield was now competing in. The songs on NB focus on relationships from the very start of the ballad "Soulmate," the first single to be lifted from the album, about being on your own and wondering if there is a soulmate for everyone, through to "When You Know You Know" about breaking up, set to a soundtrack reminiscent of early-'70s soul bands like the Delfonics or Bloodstone.