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Watch The Orwells make their network television debut on 'Letterman'

The Orwells stopped by the Late Show With David Letterman last night to perform “Who Needs You,” a track from their new EP of the the same name.

You may remember the young Chicago group from our “Four Simple Words: Lollapalooza” feature, or know them for their breakout hit “Mallrats (La La La).”

Barely out of high school, the band released a full-length and two EPs throughout 2012 and 2013, and, in addition to making festival rounds, have toured with acts such as FIDLAR and Palma Violets

Check out their Letterman performance below, and be sure to watch until the end, where an overly enthusiastic Letterman and Paul Shaffer demand an encore that never arrives, before Shaffer launches into his own rendition of “Who Needs You.” This just two days after Shaffer backed Sleigh Bells for their Late Show appearance.

The Orwells will support Arctic Monkeys on their upcoming U.S. tour, before taking part in the 2014 Weezer Cruise and embarking on headlining runs of the UK and U.S. Here's a full list of dates:

Jan 30 – The Fillmore – Miami, FL*
Jan 31 – Hard Rock Live – Orlando, FL* 
Feb 1 – Jannus Live – Saint Petersburg, FL* 
Feb 3 – The Fillmore – Charlotte, NC* 
Feb 4 – The National – Richmond, VA*
Feb 6 – Agganis Arena – Boston, MA* 
Feb 7 – State Theatre – Portland, ME* 
Feb 8 – Rough Trade In-Store – New York, NY
Feb 10 – Madison Theater – Covington, KY* 
Feb 11 – LC Indoor Pavilion – Columbus, OH*
Feb 13-17 Weezer Cruise
Feb 20 – Hare and Hounds – Birmingham, UK
Feb 21 – Brudenell Social Club – Leeds, UK
Feb 22 – Broadcast – Glasgow, UK
Feb 25 – The Haunt – Brighton, UK
Feb 27 – Night & Day – Manchester, UK
March 1 – Thekla – Bristol, UK
March 4 – Great Scott – Allston, MA
March 6 – Bowery Ballroom – New York, NY
March 7 – First Unitarian Church – Philadelphia, PA
March 8 – U Street Music Hall – Washington, DC
March 10 – The Masquerade – Hell Stage – Atlanta, GA
March 11 – One Eyed Jacks – New Orleans, LA
March 19 – Rampage Fest – Phoenix, AZ
March 20 – The Observatory – Santa Ana, CA
March 21 – Che Café – San Diego, CA
March 22 – Troubadour – Los Angeles, CA
March 23 – Slim’s – San Francisco, CA
March 25 – Neumos – Seattle, WA
March 26 – Star Theater – Portland, OR
April 1 – Lincoln Hall – Chicago, IL
April 2 – Triple Rock – Minneapolis, MN

* w/ Arctic Monkeys