- January 7 - Matt Sharp releases a remix of the Rentals song "Invasion Night" as the first in the Z36 series of remixes of tracks from the band's album, Q36.
- January 24 - The Haden Triplets release their second album, The Family Songbook.
- January 28 - The Rentals release the single "Great Big Blue" from the album Q36.
- March 1 - Weezer plays live in Tempe Beach Park in Tempe, Arizona at Innings Fest
- March 6 - An episode of Carpool Karaoke: The Series featuring Weezer and Fred Armisen premiered on Apple TV
- May 6 - "Hero", the second single from Van Weezer, is released along with an accompanying music video. Van Weezer, originally slated for release on May 15, is officially confirmed to have been postponed due to the COVID-19 pandemic.
- November 7 - A large amount of demos are leaked online from riverscuomo.com.
- November 20 - Rivers Cuomo releases Alone XI: The EWBAITE Years (originally Alone IV) to users on riverscuomo.com.
- November 22 - Rivers Cuomo releases multiple new Alone compilations to users on riverscuomo.com:
- November 23 - Rivers Cuomo releases Alone XII: The White Years to users on riverscuomo.com.