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Season 38

38x1: Seth MacFarlane/Frank Ocean
Host Seth MacFarlane; Frank Ocean performs "Thinkin' Bout You" and "Pyramids."
Air date September 15th, 2012
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38x2: Joseph Gordon-Levitt/Mumford & Sons
Host Joseph Gordon-Levitt; Mumford & Sons perform "I Will Wait" and "Below My Feet".
Air date September 22nd, 2012
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38x3: Daniel Craig/Muse
Host Daniel Craig; Muse performs "Madness" and "Panic Station."
Air date October 6th, 2012
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38x4: Christina Applegate/Passion Pit
Host Christina Applegate; Passion Pit performs "Take a Walk" and "Carried Away."
Air date October 13th, 2012
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38x5: Bruno Mars
Bruno Mars hosts and performs "Locked Out of Heaven" and "Young Girls."
Air date October 20th, 2012
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38x6: Louis C.K./Fun.
Host Louis C.K.; Fun performs "Some Nights" and "Carry On."
Air date November 3rd, 2012
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38x7: Anne Hathaway/Rihanna
Host Anne Hathaway; Rihanna performs "Diamonds" and "Stay".
Air date November 10th, 2012
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38x8: Jeremy Renner/Maroon 5
Host Jeremy Renner; Maroon 5 performes "One More Night" and "Daylight.
Air date November 17th, 2012
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38x9: Jamie Foxx/Ne-Yo
Host Jamie Foxx; Ne-Yo performs.
Air date December 8th, 2012
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38x10: Martin Short/Paul McCartney
Host Martin Short; Paul McCartney performs.
Air date December 15th, 2012
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38x11: Jennifer Lawrence/The Lumineers
Host Jennifer Lawrence; The Lumineers perform.
Air date January 19th, 2013
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38x12: Adam Levine/Kendrick Lamar
Host Adam Levine; Kendrick Lamar performs.
Air date January 26th, 2013
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38x13: Justin Bieber
Host and musical guest Justin Bieber.
Air date February 9th, 2013
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38x14: Christoph Waltz/Alabama Shakes
Host Christoph Waltz; Alabama Shakes perform.
Air date February 16th, 2013
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38x15: Kevin Hart/Macklemore & Ryan Lewis
Host Kevin Hart; Macklemore & Ryan Lewis perform.
Air date March 2nd, 2013
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38x16: Justin Timberlake
Host and musical guest Justin Timberlake.
Air date March 9th, 2013
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38x17: Melissa McCarthy/Phoenix
Host Melissa McCarthy; Phoenix performs.
Air date April 6th, 2013
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38x18: Vince Vaughn/Miguel
Host Vince Vaughn; Miguel performs.
Air date April 13th, 2013
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38x19: Zach Galifianakis/Of Monsters and Men
Host Zach Galifianakis; Of Monsters and Men perform.
Air date May 4th, 2013
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38x20: Kristen Wiig/Vampire Weekend
Host Kristen Wiig; Vampire Weekend performs.
Air date May 11th, 2013
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38x21: Ben Affleck/Kanye West
Host Ben Affleck; Kanye West performs.
Air date May 18th, 2013
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