Welsh pop singer Duffy has confirmed details of her sophomore set, titled "Endlessly" (A&M/Universal). The album is released Nov. 29 in the U.K.

The lead single "Well, Well, Well" features the Roots on rhythm section duties.

"Endlessly" was written and recorded in New York and London over the past year. Duffy formed a songwriting partnership with Albert Hammond for the record. Other tracks on "Endlessly" include "My Boy," "Endlessly," "Don't Forsake Me," "Lovestruck" and "Breath Away."

The album will be a key U.K. release for Q4. Her soulful debut "Rockferry" was the biggest-selling album of 2008, moving 1.69 million copies in Britain in 10 months. Its total worldwide sales are 6.5 million, according to a statement.