This week's Free MP3 of the Day feature noticed your iPod was hungry, so we cooked up five new tracks to satisfy its taste buds. Reminiscent of Rocket From the Crypt, the Night Marchers impressed us with their edgy sound. Then Tilly and the Wall introduced us to their rhythmic section -- the tap dancing Jamie Pressnall. And to close the week, the Constantines gave us a taste to their upcoming release, 'Kensington Heights.'

• The Night Marchers, 'Who's Lady R U?' [Download]
• Los Campesinos!, 'Death to Los Campesinos!' [Download]
• Tilly and the Wall, 'Cacophony' [Download]
• Crystal Castles, 'Crimewave' [Download]
• The Constantines, 'Hard Feelings' [Download]