It's about to be one busy summer for Rihanna. The singer has just announced that she'll be hitting the road for her Last Girl on Earth Tour with opening acts Ke$ha and Young Money rapper Nicki Minaj, a rep for Rihanna confirmed to MTV News on Monday (April 5).

The tour will begin in Seattle on July 2 and make 25 stops, including Los Angeles on July 21 and New York's Madison Square Garden on August 12, before concluding on August 25 in Chicago. Tickets go on sale at LiveNation.com on Friday. Additional dates will be announced.

In a recent interview with AOL, the singer told fans they can expect a big upgrade in comparison to her previous tours. "We've never done a tour to this capacity," she said. "The production is unbelievable and the costumes, we just took it to a whole new level. Visually and sonically it's going to be a big step up from the last time. We just keep growing, and this time it is a massive production that I cannot wait for."

The tour adds just another notch in the belt for these ladies' busy schedules. Most recently, Rihanna stopped by the Kids' Choice Awards to perform a medley of hits, including current single "Rude Boy." The songstress is scheduled to perform on Wednesday's "American Idol" results show.

The Last Girl on Earth Tour will be the perfect place for on-the-rise artists Ke$ha and Minaj to showcase their material. Ke$ha graced the "Idol" stage with 3OH!3 to perform "Blah, Blah, Blah." Minaj just released the music video for her long-awaited first single, "Massive Attack."

Last Girl on Earth Tour dates, according to a rep for Rihanna:

» 7/2 - Seattle, WA @ White River Amphitheatre
» 7/4 - Vancouver, BC @ General Motors Place
» 7/6 - Calgary, AB @ Pengrowth Saddeldome
» 7/9 - Sacramento, CA @ ARCO Arena
» 7/10 - Mountain View, CA @ Shoreline Amphitheatre at Mountain View
» 7/14 - Albuquerque, NM @ Hard Rock Casino Albuquerque presents The Pavilion
» 7/15 - Denver, CO @ Comfort Dental Amphitheatre
» 7/17 - Las Vegas, NV @ Mandalay Bay Events Center
» 7/21 - Los Angeles, CA @ Staples Center
» 7/22 - Phoenix, AZ @ Cricket Wireless Pavilion
» 7/28 - Atlanta, GA @ Philips Arena
» 7/30 - Tampa, FL @ Ford Amphitheatre
» 7/31 - Miami, FL @ American Airlines Center
» 8/3 - Indianapolis, IN @ Verizon Wireless Music Center Indianapolis
» 8/5 - Toronto, ON @ Molson Canadian Amphitheatre
» 8/7 - Montreal, QC @ Bell Centre
» 8/8 - Boston, MA @ Comcast Center
» 8/11 - Uncasville, CT @ Mohegan Sun Arena
» 8/12 - New York, NY @ Madison Square Garden
» 8/15 - Wantagh, NY @ Nikon at Jones Beach Theater
» 8/18 - Camden, NJ @ Susquehanna Bank Center
» 8/20 - Bristow, VA @ Jiffy Lube Live
» 8/21 - Hershey, PA @ Hersheypark Stadium
» 8/22 - Detroit, MI @ DTE Energy Music Theatre
» 8/25 - Chicago, IL @ United Center

Are you excited for the Last Girl on Earth Tour? Let us know in the comments!