Here's a list of albums marking significant anniversaries in 2021.
40th Anniversary
- 2/21/81 -Rush-Moving Pictures
- 4/29/81 -Van Halen-Fair Warning
- 5/5/81 -Tom Petty & the Heartbreakers-Hard Promises
- 7/31/81 -Journey-Escape
- 8/23/81 -The Rolling Stones-Tattoo You
- 10/2/81 -The Police-Ghost in the Machine
- 11/7/81 -Ozzy Osbourne-Diary of a Madman
- 11/23/81 -AC/DC-For Those About to Rock (We Salute You)
35th Anniversary
- 3/3/86 -Metallica-Master of Puppets
- 3/24/86 -Van Halen-5150
- 5/16/86 -Poison-Look What the Cat Dragged In
- 7/28/86 -R.E.M.-Life's Rich Pageant
- 8/18/86 -Bon Jovi-Slippery When Wet
30th Anniversary
- 3/12/91 -R.E.M.-Out of Time
- 4/16/91 -Temple of the Dog-Temple of the Dog
- 5/28/91 -Smashing Pumpkins-Gish
- 6/18/91 -Van Halen-For Unlawful Carnal Knowledge
- 7/2/91 -Tom Petty & the Heartbreakers-Into the Great Wide Open
- 8/12/91 -Metallica-Metallica
- 8/27/91 -Pearl Jam-Ten
- 9/17/91 -Ozzy Osbourne-No More Tears
- 9/17/91 -Guns n' Roses-Use Your Illusion I & II
- 9/24/91 -Soundgarden-Badmotorfinger
- 9/24/91 -Red Hot Chili Peppers-Blood Sugar Sex Magik
- 9/24/91 -Nirvana-Nevermind
- 11/19/91 -U2-Achtung Baby
25th Anniversary
- 3/26/96 -Stone Temple Pilots-Tiny Music...
- 4/16/96 -Rage Against the Machine-Evil Empire
- 4/30/96 -Dave Matthews Band-Crash
- 5/21/96 -Soundgarden-Down on the Upside
- 6/1/96 -Metallica-Load
- 7/30/96 -Sublime-Sublime
- 8/27/96 -Pearl Jam-No Code
- 9/24/96 -Weezer-Pinkerton
- 11/19/96 -Bush-Razorblade Suitcase
20th Anniversary
- 5/8/01 -Sum 41-All Killer No Filler
- 5/22/01 -Staind-Break the Cycle
- 6/12/01 -Blink-182-Take Off Your Pants and Jacket
- 7/3/01 -The White Stripes-White Blood Cells
- 8/28/01 -Slipknot-Iowa
- 9/11/01 -System of a Down-Toxicity
- 9/11/01 -Nickelback-Silver Side Up
10th Anniversary
- 1/11/11 -Cage the Elephant-Thank You Happy Birthday
- 3/15/11 -Awolnation-Megalithic Symphony
- 4/12/11 -Foo Fighters-Wasting Light
- 12/6/11 -The Black Keys-El Camino