Day Old Belgian Blues is a limited edition EP from the American band Kings of Leon, originally recorded at the AB Box in Brussels, Belgium on November 4, 2004. The title of the EP plays on the song name "Day Old Blues" from their second album Aha Shake Heartbreak, though the song does not appear on the EP. The EP was later available together with the Belgian magazine HUMO and is going to be released on vinyl on 29th November 2019 as part of the Black Friday of the Record Store Day.