1998
January
- January 14 - Rivers Cuomo performs a solo concert at T.T. the Bear's Place in Cambridge, MA.
- January 27 - The tribute album Hear You Me! A Tribute to Mykel and Carli is released by Vast Records.
February
March
- March 22 - Rivers, Brian and Pat appeared on Modern Rock Live to promote the Homie song American Girls on the Meet the Deedles soundtrack.[1] [2]
- March 24 - "American Girls" is released on the Meet The Deedles Soundtrack, the only official studio release of Homie.
April
- April 4 - Weezer announces Mikey Welsh will be the band's second bassist.
- April 8 - Matt Sharp officially announces his exit from Weezer.
May
June
July
August
- Date unknown
- Weezer records "Velouria" for inclusion on the compilation Where Is My Mind? A Tribute To The Pixies, released in 1999. It marks Mikey Welsh's official recorded debut with the band.