Piano Man, American Pie, Bohemian Rhapsody, Hey Jude, Santeria, and Touch Me are all really fun songs.
For chicks, the best songs are just really gay early 90's songs that will just make everyone, "ohhhhhhh my god, I loved this song." like UB40, Can't Help Falling in Love. Meatloaf is good too.
When everyone is really hammered, I noticed you can put on silly songs like the Ducktales theme, or Aladdin musi, and everyone will go nuts