Just like the rest of us, stars get together and break up—c'est la vie. Yet while some celebrity couples will be forever ingrained in the hallowed halls of pop-culture moments (reference the engagement of Ben Affleck and Jennifer Lopez; the uncoupling of Gwyneth Paltrow and Chris Martin), others just vanish from our memory, as if they never happened. Well, get ready to remember.
Ryan Reynolds and Alanis Morissette, engaged, together 2002 to 2006

Orlando Bloom and Kate Bosworth, dated, together 2002 to 2006

Jake Gyllenhaal and Kirsten Dunst, dated, together 2002 to 2004

Brittany Murphy and Ashton Kutcher, dated, together 2003

Scott Foley and Jennifer Garner, married, together 1998 to 2004

Hilary Duff and Joel Madden, dated, together 2004 to 2006

Jessica Biel and Chris Evans, dated, together 2004 to 2006

Ryan Gosling and Sandra Bullock, dated, together 2002 to 2003

Brody Jenner and Avril Lavigne, dated, together 2010 to 2012

Mila Kunis and Macaulay Culkin, dated, together 2002 to 2010

And for the record, celebrity twosomes we could never, ever forget about, no matter what? Kim and Kanye, Brad and Angelina, and Brad and Jennifer Aniston.