Following the tragic death of Hillel Slovak, the Red Hot Chili Peppers recruited John Frusciante as their new guitarist. Frusciante would prove to be an integral member of the band, with his contributions playing a big role in their classic albums 'Mother's Milk' and 'Blood Sugar Sex Magik.'

However, Frusciante quit RHCP after 'Blood Sugar Sex Magik,' and the band recorded the somewhat disappointing album 'One Hot Minute' with Dave Navarro on guitar. Thankfully, Frusciante rejoined the group in 1998 and RHCP followed with the acclaimed disc 'Californication,' as well as the albums 'By the Way' and 'Stadium Arcadium.'

While Frusciante has since left the band again, there's no telling what direction RHCP would have headed or if they would have continued had he not joined them that second time in the late '90s.