MSN has a clip of Allison Janney singing at a Golden Globe Party. Her part is at about the 3:11 minute mark. This clip requires the newest version of Internet Explorer and a special media player.
Getty Images has photos of Allison Janney at the Golden Globe parties here and here. If you cannot access the photos, copy the address in your address bar, delete "http://" from the address, and then press enter again.