When musicians hop on the phone for an interview with GO!, they’re usually either at their home or they’re hurtling down a highway toward their next show. Or in the case of Olive Klug, they’re … both.

Tik-Tok, the video-sharing social networking service is changing hip-hop as we know it. While the genre itself has only been in existence for about 48 years, Tik Tok is unintentionally changing ...