Singer/songwriter Amy Winehouse [ tickets ] has added a couple of weeks worth of new dates to her current North American tour, extending her trek well past her April 27 Coachella appearance.

The British singer, who recently was nominated for a pair of Brit Awards--Best Album and Best Female Vocalist--is scheduled to next perform April 26 in San Francisco on a bill with The Klaxons and Kaiser Chiefs, one night before her slot at the three-day Coachella festival in Indio, CA. Her itinerary, which is listed in full below, includes stops in several big cities in the Northeast and Midwest.

Winehouse is supporting the US release of her second album, "Back to Black." The disc, which hit UK stores last October, is Winehouse's follow-up to her 2003 debut, "Frank." The new set has held the No. 1 slot in the UK for the last two weeks, according to her publicist, selling a brisk 500,000 copies since its release.

Winehouse worked with two producers on her sophomore set, initially recording tracks with "Frank" producer Salaam Reemi in Miami before seeking out additional input from producer Mark Ronson (Robbie Williams, Christina Aguilera).

"I'm not quite sure how the record turned out to sound so complete but I knew that when I decided to record it in a couple of weeks I wanted it to sound like it had been," Winehouse said in her online bio.