Freestyle battles are exercises in unrestrained improvisational creativity, like the scenes in Eminem's semi-autobiographical film 8 Mile. Generally a DJ first lays down a beat, and then the two competitors clash lyrical swords, occasionally engaging in themed "battles" to sharpen their rapping skills. These two strangers soon realized they shared similar attitudes to music and decided to form a band, calling it Kou Chou Ching.
所謂的 freestyle，指的是一種不受拘束的即興創作，就像美國饒舌天王阿姆在自傳電影《街頭痞子》裡的場景一樣，通常會是 DJ 先定下節拍，然後參與競技的兩人會半唸半唱地針鋒相對，或針對某一特定主題爭辯對錯，藉著這種即席「對嗆」來增強自己的饒舌功力。