Tickets for the upcoming concert tour from Lady Antebellum, as well as tickets for upcoming concerts from Eminem and Jay-Z, are on sale throughout...

Tickets for the upcoming concert tour from Lady Antebellum, as well as tickets for upcoming concerts from Eminem and Jay-Z, are on sale throughout the weekend ending June 28 as compiled by TicketNews.

This weekend’s onsales begin with tickets to see two rap superstars together live in concert. Rap mogul Jay-Z will be teaming up with Eminem for two concerts in each rapper’s home city. The shows will take place in New York City, Jay-Z’s hometown, and Detroit, Eminem’s home. Both artists have popular records out at the moment, with Eminem’s latest CD debuting to much higher than expected sales. Their current popularity combined with their returns to their home cities should create high ticket demand.

The weekend also boasts tickets to several upcoming concerts from several of country music’s most popular artists. Starting things off are tickets to upcoming shows from Lady Antebellum. Currently enjoying continually strong album sales, the band has shows on sale in Los Angeles and Orlando. Another country act with tickets on sale this weekend is Tim McGraw, who will be performing at the kick off celebration for the 2010 Dallas Cowboys season. Rascal Flatts have tickets on sale Saturday for their upcoming concerts alongside former American Idol contestant and successful country star Kellie Pickler. Among the onsales are several stops throughout Ohio and Pennsylvania. Rounding out the country onsales are tickets to catch country duo Sugarland in concert in Baton Rouge.

Several rock acts have concerts on sale throughout the weekend. Starting things off are tickets to upcoming shows from Vampire Weekend. Among the dates on sale are shows in San Diego, Miami, Dallas, and Houston. Continuing with the upcoming rock shows, concert tickets for upcoming tour stops from Tool are on sale this morning. Stops include Los Angeles. Tickets are also on sale today for a post-Lollapalooza concert from MGMT in Chicago.

Finally this weekend, tickets are on sale to catch two of today’s top comedy acts. First up, popular comic and ventriloquist Jeff Dunham has tickets for his upcoming show in Las Vegas on sale Saturday. Lastly, Tyler Perry is bringing his latest “Madea” themed show on tour, with stops in Baltimore, Milwaukee, and New York City.

“Onsales” is a ticketing industry term describing when tickets initially go on sale to the general public. Each week, tickets are released by promoters, venues and others to dozens of events, but the number of tickets available can vary significantly between locations.