For the past couple of years, Lawrence Letterday, four young punks from Kansas (guess which city) have been crafting bouncy songs about puppy love and growing up. Hardly the first Lawrence act to dwell on emo themes, Letterday draws from the well of the Get Up Kids for its poppy guitar hooks and nasally singer Ben Kressig's bittersweet lyrics. To the delight of its many local teenage fans, Letterday released a full-length in early 2007 titled Until This Girl Goes Home. Now, it seems, the muse has done just that — Lawrence Letterday is breaking up. Tonight, the band throws down one last time in its hometown.