*Rihanna has announced plans for a summer tour to promote her latest album, “Rated R.”

The singer will hit the road with supporting acts Ke$ha and Nicki Minaj for a 25-date North American trek dubbed “Last Girl on Earth Tour.”

The outing launches July 2 on Seattle and hits such stops as New York City and Los Angeles before wrapping Aug. 25 in Chicago. [Full itinerary is listed below the clip.]  The 25-date tour will also make stops in Canada, Tampa, L.A., New York and Las Vegas.

Tickets will go on sale at LiveNation.com on Friday (April 9). Additional dates will be announced soon.

In other Rihanna news, the singer will perform her song “Te Amo” on Wednesday’s broadcast of “American Idol.” Also,  Jason Derülo will sing his hit “In My Head” and season-seven runner-up David Archuleta will belt John Lennon’s “Imagine.”

The full list of tour dates for the “Last Girl on Earth tour” are:

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)