However, some radio stations, such as the Los Angeles-based KPWR, refused to play it. The follow-up to "Hit 'Em Up" was the song "Bomb First (My Second Reply)". "Hit 'Em Up" has been called "controversial," "infamous," "disturbing," and "brutal." Shakur's insults against virtually the entire East Coast scene of rappers were said to be ferocious. The song, along with "Dear Mama," has been viewed as one of Shakur's songs that resonated with and was spoken of the most by young people. Among associates of Shakur, it was called a "bad-luck song." Los Angeles radio director Bruce St. James called the song "the be-all, end-all, curse-word, dirty-lyric, violent song of all time." Documentary filmmaker Carl Weston believed that "most people in Biggie's shoes would have wanted to at least hurt Tupac" in a Spin magazine interview. Among musicians, the song drew criticism from singer Dionne Warwick, and disapproval from fellow rappers Kool Moe Dee and Chuck D, as written in their book There's a God on the Mic: The True 50 Greatest MCs. They felt that although Shakur was one of the most substantive rappers of that period, he had gone too far with "Hit 'Em Up," causing some of Shakur's fans to turn on him, according to the two rappers. Aftermath The song has been viewed as the turning point in the feud between Tupac and Biggie, where things were said and rapped which could never be taken back during the remainder of Shakur's life. This has led to its being dubbed as the beginning of the war between the East Coast and the West Coast, and the centerpiece in what became the most venomous battle in the history of hip hop. "Hit 'Em Up" has been studied by and with academics, and it has been used as a part of a series of lessons for building the means to communicate with younger people. Its main role in these lessons is to define anger in rap music. Biggie was shot and killed six months after Shakur's death. Response From Biggie After hearing "Hit 'Em Up", Biggie continued proclaiming his innocence in the shooting incident. He also remarked that the song "Who Shot Ya?" was written before Shakur was shot and thus, was not about him. Regarding the lyrics aimed at his wife Faith, Biggie expressed an inability to find merit in what Shakur had claimed. He believed that Shakur intended