on 16 september 2010 duffy announced the release of her second album, "endlessly". the album was recorded in new york, london and spain in the year prior to the announcement. duffy formed a songwriting partnership with albert hammond for the record. "endlessly" was released in the united kingdom on 29 november 2010 and placed at number 9 in the album charts of 5 december. the album's first single failed to achieve the success of previous singles, entering the uk charts at number 41 on 21 november. called "well, well, well", the single features a rhythm section by united states hip hop group the roots.