Wow. The duo actually dressed up for national television. Watch them perform “Tighten Up” on Letterman below and look for them on tour this Summer. (video via)

the Black Keys-Tighten Up (live on Letterman 05.26.10) [mp3]

Tour Dates

May 26 “Late Night with Jimmy Fallon” New York, NY
June 2 The Depot Salt Lake City, UT†
June 3 The Fillmore Denver, CO†
June 4 The Crossroads Kansas City, MO†
June 5 Wakarusa Music & Camping Festival Ozark, AR
June 8 First Ave Minneapolis, MN†
June 9 First Ave Minneapolis, MN†
June 10 The Pageant St. Louis, MO†
June 11 Bonnaroo Manchester, TN
July 23 Constellation Brands- Marvin Sands PAC Canandaigua, NY§
July 24 Nautica Amphitheatre Cleveland, OH
July 26 DAR Constitution Hall Washington, D.C. #
July 27 Central Park SummerStage New York, NY#
July 28 Central Park SummerStage New York, NY#
July 30 Great Plaza at Penn’s Landing Philadelphia, PA#
July 31 Bank of America Pavilion Boston, MA#
August 1 Osheaga Festival Montreal, QC
August 3 Kool Haus Toronto, ON#
August 6 Lollapalooza Chicago, IL
August 8 Val Air Ballroom Des Moines, IA#
August 9 The Anchor Inn Omaha, NE#
August 11 Iroquois Amphitheatre Louisville, KY#
August 12 Ryman Auditorium Nashville, TN#
August 13 The LC Amphitheatre Columbus, OH#
August 14 The Fillmore Detroit Detroit, MI#
September 3 Verizon Wireless Music Center Indianapolis, IN^
September 4 Riverbend Music Center Cincinnati, OH^
September 5 Town Ballroom Buffalo, NY%
September 7 First Niagara Pavilion Burgettstown, PA^
September 8 Hershey Park Stadium & Star Pavilion Hershey, PA^
September 9 Charlottesville Pavilion Charlottesville, VA%
September 10 Verizon Wireless Amphitheatre Charlotte, NC^
September 11 Virginia Beach Amphitheatre Virginia Beach, VA^
September 13 Time Warner Cable Amphitheatre Raleigh, NC^
September 14 Orange Peel Asheville, NC%
September 15 Lakewood Amphitheatre Atlanta, GA^
September 17 Cruzan Amphitheatre West Palm Beach, FL^
September 18 Ford Amphitheatre Tampa, FL^
September 20 Verizon Wireless Music Center Birmingham, AL^
September 21 House of Blues New Orleans, LA%
September 22 Cynthia Woods Mitchell Pavilion Houston, TX^
September 23 Superpages.com Center Dallas, TX^
September 25 Soma San Diego, CA§§
September 27 Hollywood Palladium Los Angeles, CA§§
September 29 The Fox Oakland, CA§§
October 2 Paramount Theatre Seattle, WA§§
October 3 The Orpheum Vancouver, BC§§
October 4 Crystal Ballroom Portland, OR§§
October 10 Cain’s Ballroom Tulsa, OK§§

*—with Pearl Jam
†—with Brian Olive
§—with The Flaming Lips
#—with The Morning Benders
^—with Kings of Leon
%—with The Whigs
§§—with Nicole Atkins