DEF LEPPARD singer Joe Elliott and guitarist Phil Collen stopped by the Rolling Stone office recently to play stripped-down acoustic versions of two of their band's biggest hits, 'Hysteria' and 'Pour Some Sugar on Me'. Check out video footage plus an interview with David Fricke below:

In other news, Def Leppard have announced more US tour dates with HEART. The itinerary is now as follows:

June

15 - West Palm Beach, FL - Cruzan Amphitheatre
17 - Tampa, FL - 1-800-ASK-GARY Amphitheatre
18 - Atlanta, GA - Aarons Amphitheatre at Lakewood
19 - Orange Beach, AL - Amphitheater at the Wharf
22 - Charlotte, NC - Verizon Wireless Amphitheatre
24 - Raleigh, NC - Time Warner Cable Music Pavilion
25 - Virginia Beach, VA - Farm Bureau Live
26 - Philadelphia, PA - Susquehanna Bank Center
29 - Scranton, PA - Toyota Pavilion
30 - Boston, MA - Comcast Center

July

2 - Uncasville, CT - Mohegan Sun Arena
3 - Hershey, PA - Hersheypark Stadium
5 - Milwaukee, WI - Summerfest
7 - Cincinnati, OH - Riverbend Music Center
12 - Wantagh, NY - Nikon at Jones Beach Theater
13 - Holmdel, NJ - PNC Bank Arts Center
15 - Chicago, IL - First Midwest Bank Amphitheatre
17 - Cadott, WI - Rockfest
19 - Tulsa, OK - BOK Center
20 - Dallas, TX - Gexa Energy Pavilion
22 - Houston, TX - Cynthia Woods Mitchell Pavilion
23 - New Orleans, LA - New Orleans Arena
24 - San Antonio, TX - AT&T; Center

August

8 - Sturgis, SD - Buffalo Chip
10 - St. Louis, MO - Verizon Wireless Amphitheater
13 - Des Moines,IA - Iowa State Fair
17 - Detroit, MI - DTE Energy Music Theatre
20 - Pittsburgh, PA - First Niagara Pavilion
21 - Buffalo, NY - Darien Lake Performing Arts Center
24 - Cleveland, OH - Blossom Music Center
26 - St Paul, MN - Minnesota State Fair
27 - Kansas City, MO - Sprint Center
31 - Salt Lake City, UT - USANA Amphitheatre

September

2 - Albuquerque, NM - The Pavilion
7 - Universal City, CA - Gibson Amphitheatre
9 - San Francisco, CA - Shoreline Amphitheatre
11 - Sacramento, CA - Sleep Train Amphitheatre
14 - Portland, OR - Sleep Country Amphitheater
15 - Seattle, WA - White River Amphitheatre