The Red Hot Chili Peppers have released eleven studio albums. Their early albums were a mix of Rock and Funk, and were not very successful. The band's membership changed several times during this period, but Kiedis and Flea have been with the band since it started. When Frusciante and Smith joined in 1989, Red Hot Chili Peppers' next album, "Mother's Milk", was successful. It was the band's first album to appear on the "Billboard" music chart. While Red Hot Chili Peppers were on tour in 1992 after their fifth and most successful album, "Blood Sugar Sex Magik", Frusciante left the band because of a drug addiction.