We judge the success of a mash-up by how many people one feels the need to send it to in the few minutes after hearing it. “Lying Milkshakes” — a marriage of Panic! at the Disco’s “Lying Is the Most Fun a Girl Can Have Without Taking Off Her Clothes” and Kelis’ “Milkshake” — is doing pretty well by us so far, averaging about seven-and-a-half friends per post-listen pass-around. It’s no Girl Talk mega-mashup, but then again the dude who made it probably doesn’t live in fear of record label hit men. So there you go. Check it out!