They keep going and going and going: AC/DC are charging up for the second North American leg of their Stiff Upper Lip tour, which kicks off March 18 in Fort Lauderdale, Florida.

The Australian hard-rockers will focus on cities they missed last fall, when they played 33 North American dates in support of their 17th album, Stiff Upper Lip, according to a spokesperson at Elektra Records. The tour will hit 30 cities before wrapping up May 5 in Philadelphia.

AC/DC released Stiff Upper Lip last February and had minor hits with the title track and "Satellite Blues." They followed the release with their first U.S. tour in four years.

In celebration of the upcoming tour, a DVD version of AC/DC's "No Bull" live video, which documents a 1996 concert filmed in a Madrid bullring, will be released March 6. The DVD will feature bonus footage of the "Hard as a Rock" video and a "Making of 'Hard as a Rock' " documentary, along with band interviews.

Tickets for the second leg of the Stiff Upper Lip tour have already gone on sale and sold out in some markets, according to Elektra. Special contests are being held in each city where fans are "drafted" by radio stations into the Angus Army — named for guitarist Angus Young — and treated to onstage seating (see AngusArmy.com for more details).

AC/DC's Australian tour last month took a minor blow when drummer Phil Rudd was diagnosed with a kidney infection. The band had to postpone a show in Adelaide, but Rudd returned the following night and has been healthy since.

The "You Shook Me All Night Long" rockers were recently declared the fifth best-selling band of all time. The group has sold 63 million albums, according to the Recording Industry Association of America, following only the Beatles, Led Zeppelin, Pink Floyd and the Eagles. Back in Black, the band's 1980 rock opus, has sold 19 million albums alone.

Stiff Upper Lip tour dates, according to Elektra Records:

3/18 - Fort Lauderdale, FL @ National Car Rental Center

3/20 - Orlando, FL @ TD Waterhouse Centre

3/21 - Tampa, FL @ Ice Palace

3/23 - Nashville, TN @ Gaylord Entertainment Center

3/24 - Memphis, TN @ The Pyramid

3/26 - Little Rock, AR @ Alltel Arena

3/28 - Greenville, SC @ Bi-Lo Center

3/29 - Greensboro, NC @ Greensboro Coliseum

3/31 - Charlotte, NC @ Charlotte Coliseum

4/1 - Raleigh, NC @ Entertainment & Sports Arena

4/3 - Dayton, OH @ Ervin J. Nutter Center

4/4 - Columbus, OH @ Nationwide Arena

4/6 - Cleveland, OH @ Gund Arena

4/8 - Chicago, IL @ United Center

4/9 - Minneapolis, MN @ Xcel Energy Center

4/11 - Denver, CO @ Pepsi Arena

4/12 - West Valley City, UT @ E Center

4/14 - Los Angeles, CA @ Great Western Forum

4/17 - Sacramento, CA @ ARCO Arena

4/19 - Portland, OR @ Rose Garden Arena

4/20 - Tacoma, WA @ Tacoma Dome

4/22 - Vancouver, BC @ Pacific Coliseum

4/25 - Edmonton, AB @ Skyreach Centre

4/26 - Calgary, AB @ Pengrowth Saddledome

4/28 - Winnipeg, MB @ Winnipeg Arena

4/29 - Fargo, ND @ Fargodome

5/1 - Madison, WI @ Kohl Center

5/2 - Detroit, MI @ Joe Louis Arena

5/4 - Boston, MA @ FleetCenter

5/5 - Philadelphia, PA @ First Union Spectrum