He may have amassed a career seven Grammy Awards — including two at this week’s ceremonies — but Usher isn’t resting on his laurels....

He may have amassed a career seven Grammy Awards — including two at this week’s ceremonies — but Usher isn’t resting on his laurels. The R&B music magnate has plotted a fresh round of arena touring to take him through the late spring months.

The on-going OMG Tour resumes April 27 at the Bank Atlantic Center in Sunrise, FL, and continues at least through a June 1 concert at the Staples Center in Los Angeles, CA. Akon will appear as a special guest on all dates of the tour.

The 19-city routing has some gaps in it that could be filled with more concerts at a later date. But at the moment, confirmed U.S. gigs include May 5 at Boardwalk Hall in Atlantic City, NY; May 20 at Allstate Arena in Rosemont, IL; and May 28 at Arco Arena in Sacramento, CA.

Two performances have also been added in Canada on May 14 at Air Canada Centre in Toronto, ON, and May 25 at Rogers Arena in Vancouver, BC.

Not all onsale dates have been announced yet, but the first round of public ticket sales begins in select cities this Thursday, February 17. In the states, most ticket prices start around $25 and reach up to $100, while the Toronto show is priced from C$39.75 up to C$143, according to Ticketmaster.com listings.

Usher launched the OMG Tour in North America with more than two dozen concerts in November and December 2010. The performer’s overseas leg starts tonight, February 15, in Paris and ends in New Zealand this April.

Full details of the on-going OMG Tour are available on Usher’s official Web site.

Over the course of his career, Usher has been nominated for nearly 20 Grammy Awards and has taken home statuettes in 2001, 2002 and 2005 (when he won in three categories). On Sunday night, February 13, the singer added two more Grammys to his collection: one for Best Male R&B Vocal Performance on “There Goes My Baby,” and the other for Best Contemporary R&B Album for “Raymond v. Raymond.”

Usher itinerary:
(Dates are subject to change.)

April 27 Sunrise, FL BankAtlantic Center
April 28 Orlando, FL Amway Center
April 30 Charlotte, NC Time Warner Cable Arena
May 1 Columbia, SC Colonial Life Arena
May 6 Atlantic City, NJ Atlantic City Boardwalk Hall
May 8 Uniondale, NY Nassau Veterans Memorial Coliseum
May 11 Pittsburgh, PA C ONSOL Energy Center
May 12 Cleveland, OH Quicken Loans Arena
May 14 Toronto, ON Air Canada Centre
May 15 Auburn Hills, MI The Palace Of Auburn Hills
May 18 Columbus, OH Schottenstein Center
May 20 Rosemont, IL Allstate Arena
May 21 Minneapolis, MN Target Center
May 22 Omaha, NE Qwest Center Omaha
May 25 Vancouver, BC Rogers Arena
May 26 Portland, OR Rose Garden Arena
May 28 Sacramento, CA ARCO Arena
May 29 San Jose, CA HP Pavilion At San Jose
June 1 Los Angeles, CA Staples Center