Intro: Under Midnight - "Lie To Me"
Outro: Kasabian - "Club Foot"
You think I'm not serious?
But for the sake of the argument and for picking stuff that won't be a complete downer for the audience (or have things hit a bit too close to home), the stereotypical saccharine music you'd expect to hear:
Intro: INXS - "New Sensation"
Outro: KC & The Sunshine Band - "Keep It Comin' Love"
Or for the more irreverent, satirical side, just make both of them the Imperial March from Star Wars.