Repeating a successful strategy, Backstreet Boys [ tickets ] will put all tickets for their February and March tour on sale on one day. liveDaily has confirmed that 19 cities are on the group's upcoming itinerary, and tickets for all shows are scheduled to go on sale Saturday (12/11).

liveDaily has also confirmed that four new cities have been added to the group's itinerary since the band first announced new dates via its official website: Greensboro, N.C., East Lansing, Mich., Hamilton, Ont., and Toronto.

When tickets for the ''Millennium'' tour went on sale in August, the group's legion of young fans snapped up all 765,000 tickets in a matter of hours, prompting additional shows in many markets and shattering a number of box-office records.

Backstreet Boys, who played arenas during the 1999 leg of their tour, are booked into some much larger venues this time around. The Louisiana Superdome, for instance, can hold a crowd of close to 75,000.

The group concluded the 1999 leg of its tour last weekend with a pair of make-up dates at the National Car Rental Center near Ft. Lauderdale, Fla. Those concerts, which were originally scheduled to open the North American tour on Sept. 14, were postponed because of Hurricane Floyd.

The group has announced plans to use to use Tickets.com's services to auction an expected 1,000 tickets for the upcoming tour, with profits earmarked for as-yet-unnamed charity groups.