I like covers where the band doing the cover plays a different type of music than the original artist of the song. Like Faster Pussycat’s cover of You’re So Vain, or Seether’s cover of Careless Whisper, or even Type O Negative’s cover of Summer Breeze. If your sound is heavier, cover something really poppy, sugary and light, but if your sound is lighter, cover a hard rock or metal song, kind of like what Pat Boone did, or like when Joss Stone covered The White Stripes. Bring something new to the table. And you can never go wrong with TV theme songs…think Greatest American Hero or Mash.