New Kids on the Block [ tickets ] have added Natasha Bedingfield to their North American reunion tour, and have added a couple new dates to their itinerary.

The 10-week outing, which will visit US and Canadian cities from coast to coast, is set to kick off Sept. 18 with the first of three concerts in Toronto. Since last check, a stop was added in Providence, RI, and a second Los Angeles gig was tacked on. So far, shows have been sold out in Toronto, the Denver area, Atlantic City and Uncasville, CT, according to the New Kids' website. An updated itinerary is listed below.

On the road trip, New Kids on the Block plan to put a new twist on their old songs and introduce material from their forthcoming album, which is due this fall. The lead single from the set, "Summertime," has been climbing Billboard's pop and mainstream charts over the past six weeks and is streaming at the group's MySpace page.

New Kids, whose members are now in their 30s, appeared together on NBC-TV's "Today" show in April to announce their reunion. They returned to the program last month to give their first public performance together in 15 years. They've since played a couple of radio festivals and performed at Toronto's MuchMusic Video Awards.

Bedingfield, one of the UK's biggest pop stars, will get fans warmed up with material from her latest album, "Pocketful of Sunshine," which reached No. 3 on The Billboard 200 in February. The set has spawned the hits "Love Like This" and the title track, and a third single is due this summer.

The Grammy-nominated songstress made a huge impression on US fans with her 2005 release, "Unwritten," the title track from which was one of the most played songs on mainstream American radio in 2006, according to her bio.

Bedingfield is currently traveling around the US on the Verizon VIP Tour, which also features Kate Voegele and The Veronicas.