In 1984 he left the Red Hot Chili Peppers to play in his other band `` What Is This '' . He rejoined in 1985 to record `` Freaky Styley '' and `` The Uplift Mofo Party Plan '' in 1987 . He rejoined the Red Hot Chili Peppers in 1985 , and recorded the albums Freaky Styley and The Uplift Mofo Party Plan with the band .