don't use bands everyone knows, and hears every day, and basically knows about it (Zeppelin, Beatles, Nirvana, Elvis, The Doors, Hendrix, Pink Floyd), do bands that not many people really talk about (Alice In Chains, The Who, The Kinks, Neil Young). Actually I've known somebody used a comparison chart from back of the 60's 70's bands to current artists, and got 48/50.
Or just bring in some Nile or Iron Maiden, and its all good