Michael Balzary grew up hating rock and roll and loving jazz. That changed after meeting Anthony Keidis and Hillel Slovack. Balzary went from being called Mike B the Flea to simply Flea. Flea was an accomplished trumpet player, but Slovack wanted him to play bass in a band. Eventually, the Red Hot Chili Peppers were formed and Flea became one of the best bassists of all time.
But, he still busts out the trumpet from time to time. Fans of the Red Hot Chili Peppers have probably seen Flea play the trumpet at some point during concerts.
In 1991, the Red Hot Chili Peppers were already fairly well known following the moderate success of their first four albums. But, their popularity exploded after the release of their Blood Sugar Sex Magik album. Two other legendary alternative rock bands, Nirvana and Pearl Jam, released breakthrough albums in 1991.
Red Hot Chili Peppers, Nirvana, and Pearl Jam actually toured together in late 1991. The Chili Peppers headlined the show as all three bands were quickly becoming huge.
In 1993, at the height of grunge, the Chili Peppers joined several grunge bands such as Alice in Chains, L7, and Nirvana at Brazil's Hollywood Rock Festival. When Nirvana played their biggest hit, Smells Like Teen Spirit, a special guest joined them and played an instrument from his childhood.