What Is This was an American rock band that originated in Fairfax High School in Los Angeles, California. Formed by guitarist Hillel Slovak, drummer Jack Irons, vocalist Alain Johannes, and bassist Todd Strassman, the band served as the nucleus for the Red Hot Chili Peppers. Members of the band would go on to perform with Eleven, Chris Cornell, Pearl Jam, Mark Lanegan, Them Crooked Vultures, Alain Johannes Trio and Queens of the Stone Age.

Eleven was an American alternative rock group from Los Angeles, California, formed in 1990 by Alain Johannes, Natasha Shneider, and Jack Irons (drums).