"I Wanna Have Your Babies" was released as the lead single from "N.B." on 2 April 2007. The single received mixed reviews but reached number seven on the UK Singles Chart and reached the top forty in most countries worldwide. "Soulmate" was released as the second single from the album on 2 July 2007. The single reached number seven on the UK Singles Chart and the top twenty in most countries worldwide, becoming even more successful than the album's lead single. "Love Like This", featuring Sean Kingston, was released on 25 September 2007. It was released for online music stores on 2 October 2007. The single was a top twenty hit in the United States, reaching number eleven on "Billboard" Hot 100 and number ten on Pop 100. The single was released in the United Kingdom on 7 April 2008. "Pocketful of Sunshine" was released on 11 February 2008. The single reached number five on "Billboard" Hot 100, becoming Bedingfield's second top ten single. It also peaked at number three on Canadian Hot 100. The song was selected as the theme song of Nickland in Germany.