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Duet / Mashup / EpicDuets:
https://www.youtube.com/watch?v=-_Sdw...

Marshall Lee / Ashe:
https://www.youtube.com/watch?v=aYKRR...

Prince Gumball / Caleb Hyles:
https://www.youtube.com/watch?v=X81iu...

Music / Jon Hernández:
https://www.youtube.com/watch?v=Spo09...

Artwork / Y-annah:
http://y-annah.tumblr.com/post/145624...

Marshall Lee, Prince Gumball, & Adventure Time © Cartoon Network

【Marshall vs Gumball】 I'm My Own Problem「DUET」Adventure Time

:( 's other profile cause i went over my 3 hour limit and my ass is FOR SURE not clicking "try pro."

【Marshall vs Gumball】 I'm My Own Problem「DUET」Adventure Time

:)