[article id="1657854"]Bruno Mars and Janelle Monáe[/article] took it old-school at the Grammys on Sunday night, and judging from the poster for their just-announced North American co-headlining tour, the pair plan to offer up plenty more retro-soul goodness when they hit the road beginning in May.

The poster for the Hooligans in Wondaland Tour looks like an old paste-up for a James Brown-era all-star show at the Apollo Theater in Harlem, in keeping with both artists' back to the future vibe. Joining them on the trek will be British singer/ rapper Plan B and blue-eyed retro-soul singer Mayer Hawthorne. The two-month outing is slated to kick off on May 4 with a show at New York's Roseland Ballroom and wind up on June 15 at Comerica Theatre in Phoenix, Arizona.

Mars won the Best Male Pop Vocal Performance award at the Grammys on Sunday night for his breakthrough hit "Just the Way You Are." The pair earned a standing ovation at the end of their set, which included Mars'

doo-wop remix of "Grenade" and Monáe's crowd-surfing run through her "Cold War."

According to Billboard, Mars is in Los Angeles working on the video for "The Lazy Song," the next single from his smash debut, Doo-Wops & Hooligans. He'll hang around for a bit to perform on the pregame show at Sunday night's [article id="1657562"]NBA All-Star Game[/article].

Fans can get information on presale tickets -- including bundles that include meet-and-greets with Mars and/or Monáe and early entry to the venue -- beginning on Wednesday (February 16) at BrunoMars.com. General-public tickets will go on sale beginning February 26.

Dates for the Hooligans in Wondaland Tour:

» May 4 - New York, NY @ Roseland Ballroom

» May 7 - Boston, MA @ Agganis Arena

» May 8 - Camden, NJ @ Susquehanna Bank Center

» May 10 - Atlanta, GA @ Fox Theatre

» May 11 - Miami Beach, FL @ Fillmore Miami Beach

» May 17 - Grand Prairie, TX @ Verizon Theatre at Grand Prairie

» May 18 - Houston, TX @ Reliant Arena

» May 20 - Montgomery, AL @ Jubilee CityFest

» May 22 - Windsor, ON @ Caesars Windsor

» May 24 - Milwaukee, WI @ Eagles Ballroom

» May 25 - St. Paul, MN @ Roy Wilkins Auditorium

»» May 27 - Chicago, IL @ Aragon Ballroom

» May 28 - Kansas City, MO @ Uptown Theatre

» May 29 - Broomfield, CO @ 1st Bank Center

» May 30 - Orem, UT @ McKay Events Center

» June 2 - Seattle, WA @ WAMU Theater @ Qwest Field

» June 3 - Vancouver, BC @ Rogers Arena

» June 4 - Portland, OR @ Roseland Theatre

» June 7 - Reno, NV @ Grand Sierra Resort & Casino

» June 8 - San Francisco, CA @ Bill Graham Civic Auditorium

» June 10 - Coachella, CA @ Spotlight 29 Casino

»June 11 - Del Mar, CA @ San Diego County Fair

» June 12 - Universal City, CA @ Gibson Amphitheatre

» June 15 - Phoenix, AZ @ Comerica Theatre