As has been the norm of late, several high-profile concerts will keep ticket-sellers busy in the coming days. Tickets to a half-dozen matchbox twenty shows, eight U2 [ tickets ] performances, and several OutKast [ tickets ] dates are among those that will hit the market.

Tickets to see pop-rock purveyors matchbox twenty, who are touring with Everclear, will go on sale in four markets on Friday (1/26). Tickets for shows in New York City and Wilkes Barre, Pa., go on sale at 9 a.m. Eastern Time, and 10 a.m. Eastern Time on-sales are planned for Cleveland and Toledo, Ohio.

On Saturday (1/27) at 10 a.m. Eastern Time, tickets hit the market for the tour’s Cincinnati engagement; and tickets go on sale for a Minneapolis show at 10 a.m. Central Time.

At 10 a.m. Eastern Time, tickets go on sale for upcoming U2 [ tickets ] shows in Lexington, Ky.; Pittsburgh; Columbus, Ohio; Indianapolis; and Albany, N.Y.

Ticket on-sales begin at 10 a.m. Central Time for U2 appearances in Milwaukee and Houston, as well as the recently added fourth U2 show at Chicago’s United Center.

Don Henley [ tickets ] has generally been booked into smaller venues this year than he was last, so sellouts are a possibility in some markets.

Tickets go on sale for Henley’s appearance in Grand Rapids, Mich., at 10 a.m. Central Time on Friday (1/26). On Saturday (1/27) at 10 a.m. Central Time, tickets hit the market for Henley’s Champaign, Ill. stop; at noon Central Time, tickets go on sale for Henley’s Minneapolis show.

Joe Walsh, Henley’s sometime-bandmate in the Eagles, is scheduled to perform at Ruth Eckerd Hall in Tampa, Fla., on March 23. Tickets go on sale on Friday (1/26) at 10 a.m. Eastern Time.

Hip-hop acts OutKast [ tickets ] and Ludacris open a U.S. tour later this month, and ticket on-sales are beginning to roll out. On Friday (1/26) at 10 a.m. Eastern Time, tickets go on sale for the tour’s Fairfax, Va., show, and at 5 p.m. Central Time, tickets for the St. Louis gig go on sale.

Tickets hit the market at 10 a.m. Eastern Time on Saturday (1/27) for the tour’s stops in Cleveland, Boston and Philadelphia. At 10 a.m. Pacific Time, tickets go on sale for the Las Vegas show, and an 11 a.m. Central Time on-sale is planned in Chicago.

Erykah Badu [ tickets ]’s tour is scheduled to visit Detroit on Feb. 22, and tickets go on sale Friday (1/26) at noon Eastern Time. Tickets for her March 23 show in Cincinnati go on sale Saturday (1/27) at 10 a.m. Eastern 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. liveDaily is a publication of Ticketmaster Online-CitySearch.