Rihanna has added some extra swag to her Diamonds World Tour with the recent addition of suave rapper A$AP Rocky. The Harlemite will join the Bajan songbird on the North American leg of the trek in 2013.

The arena tour will kick off on March 8 in Buffalo, N.Y., and is set to hit 30 cities before wrapping up on May 4 and 5 at the Barclays Center in Brooklyn, N.Y. RiRi is embarking on this huge jaunt in support of her upcoming album 'Unapologetic,' which arrives in stores on Nov. 19.

On Wednesday (Nov. 7), Rihanna went on Twitter to officially welcome her new tourmate. "This is gonna be some Young Epic Rockstar s---! See you on tour @asvpxrocky : )," she tweeted. Tickets are currently on sale at Live Nation.

But before Rihanna embarks on her world tour next year, she will hit the road on a seven-day promotional trek called 777 Tour in honor of her seventh album. The excursion consists of Rihanna performing seven concerts in seven days in seven different countries. The 'We Found Love' singer is also bringing the media along for the ride on a 777 Boeing jet. The jaunt will officially launch on Nov. 14.

Rihanna will certainly rack up plenty of frequent flyer miles on both of these major tours. Go RiRi!

Rihanna's Diamond North American Tour Dates:
3/8 - Buffalo, N.Y. | First Niagara Center
3/10 - Boston, Mass. | TD Garden
3/12 - Baltimore, MD | 1st Mariner Arena
3/14 - Philadelphia, Pa. | Wells Fargo Center
3/15 - Hartford, Conn.| XL Center
3/17 - Montreal, QC | Bell Centre
3/18 - Toronto, ON |Air Canada Centre
3/21 - Detroit, Mich. | Joe Louis Arena
3/22 - Chicago, Ill. | United Center
3/24 - St. Paul, Min. | Xcel Energy Center
3/25 - Winnipeg, MB | MTS Centre
3/27 - Edmonton, AB | Rexall Place
3/30 - Calgary, AB |Scotiabank Saddledome
4/1 - Vancouver, BC | Rogers Arena
4/3 - Seattle, Wash. | Key Arena
4/6 - San Jose, Calif. | HP Pavilion
4/8 - Los Angeles, Calif. | Staples Center
4/9 - Anaheim, Calif. | Honda Center
4/11 - San Diego, Calif. | Valley View Casino Center
4/12 - Las Vegas, Nev. | Mandalay Bay
4/15 - Houston, TX | Toyota Center
4/16 - Dallas, TX | American Airlines Center
4/19 - Tampa, Fla. | Tampa Bay Times Forum
4/20 - Ft. Lauderdale, Fla. | BankAtlantic Center
4/22 - Atlanta, Ga. | Philips Arena
4/29 - Washington, D.C. | Verizon Center
5/2 - Ottawa, ON | Scotiabank Place
5/4 - Brooklyn, N.Y. | Barclays Center
5/5 - Brooklyn, N.Y. | Barclays Center

Watch Rihanna + A$AP Rocky Perform 'Cockiness' at the 2012 MTV Video Music Awards