update: As will likely be the case for the next few weeks, ticket-sellers will be kept on their toes in the coming days by a throng of fans seeking tickets for stops on 'NSync's spring-summer tour. But there's likely to be plenty of interest in upcoming OutKast [ tickets ], Papa Roach [ tickets ], and matchbox twenty on-sales as well.

Tickets will go on sale for 'NSync performances in at least eight new cities on Saturday (2/17), and a second show has been added in Hershey, Pa.

On-sales get underway for the tour's Toronto stop at 7 a.m. Eastern Time. At 10 a.m. Eastern Time, tickets go on sale for shows in the New York City, Boston, Hershey, Pa., and Buffalo regions. Tickets for shows in the Houston, Dallas, Kansas City and Little Rock regions go on sale at 10 a.m. Central Time.

OutKast [ tickets ] is touring the club circuit in support of the recent hit release "Stankonia." Tickets for three upcoming shows will go on the market in the coming days. On Friday (2/16) at 5 p.m. Eastern Time, tickets for the duo's Sunrise, Fla., appearance go on sale. On Saturday (2/17) at 10 a.m. Eastern Time, tickets for Orlando, Fla., go on sale; and at 10 a.m. Central Time, tickets for New Orleans will go on sale.

Papa Roach [ tickets ] is rolling out more dates on its "Raid the Nation" tour with Orgy and Alien Ant Farm. Tickets for the tour's April 9 stop in New York City go on sale at 9 a.m. on Friday (2/16). A 10 a.m. Eastern Time on-sale is planned for the March 23 tour stop in Atlanta. At 5 p.m. Eastern Time, tickets for shows in Tampa (March 31) and Miami (March 26) go on sale.

On Saturday (2/17) at 10 a.m. Central Time, tickets for a March 21 show in Birmingham, Ala., go on sale, and at 10 a.m. Eastern Time, tickets for a Raleigh, N.C., tour stop (April 3) will hit the market. At 11 a.m. Eastern Time, tickets for a show in Washington, D.C. (April 7) go on sale.

Pop-rock hitmakers matchbox twenty are touring with Everclear and Lifehouse, and tickets for shows continue to go on sale.

On Friday (2/16) at 4 p.m. Central Time, tickets go on sale for the tour's Lubbock, Texas, stop at Select-a-Seat outlets. Tickets go on sale at 10 a.m. Central Time on Saturday (2/17) in Wichita, Kan. (through Select-a-Seat outlets) and Nashville.

At 9 a.m. Pacific Time on Saturday, tickets go on sale for the tour's stop in Portland, Ore.; at 10 a.m. Pacific Time, tickets go on sale for the Seattle show.

Tickets for upcoming matchbox twenty shows in Raleigh, N.C., Charlotte, N.C., Atlanta, Ft. Lauderdale, and Orlando go on sale at 10 a.m. Eastern Time.

Elton John [ tickets ] and Billy Joel will take their headlining tour to Minneapolis on May 16. Tickets go on sale on Saturday (2/17) at 10 a.m. Central Time.

Ticket on-sale information for many other shows is available at liveDaily's Ticket Alert.

Unless otherwise noted, tickets are available from Ticketmaster and Ticketmaster Online, as well as the venue box office. Ticketmaster is LiveDaily’s parent company.