You only get one chance to make a good first impression. Attention spans are as fleeting as ever in this world of instant gratification and 140 character limits. A rapper can gain or lose fans in just a few seconds, which is why it’s so important to hitthe track hard. Over the course of Hip-Hop’s history, a few songs have become iconic based solely on the opening lines. In no ranking order, here are 55 songs whose opening lines are unforgettable.