Josh Alexander is a songwriter, pianist, and producer best known for his collaborations with songwriter/producer Billy Steinberg. Their work includes songs for Demi Lovato ("Give Your Heart a Break"), JoJo ("Too Little Too Late"), Nicole Scherzinger ("Don't Hold Your Breath") and t.A.T.u ("All About Us"). He is a friend of Rivers Cuomo and has co-written several Weezer songs. In a 2017 interview with NPR, Rivers called him a "great melody guy and great pianist".
Songs co-written by Josh Alexander and Rivers Cuomo
- "僕らの未来" with Scott Murphy and Patrick Lukens
- "風吹けば" with Scott Murphy and Billy Steinberg
- "ニューガール with Scott Murphy
- "High Maintenance" by Miranda Cosgrove; with Billy Steinberg
- "Anyway" by CeeLo Green; with CeeLo Green, Eric Frederic, and Ross Golan
- "Getting It Out" by McBusted; with Tom Fletcher, Danny Jones, and Dougie Poynter