What was the name of the song that a broken up celebrity couple made about each other?

It was a celeb couple who had broken up and wrote 2 different songs about each other.What was the name of the song that a broken up celebrity couple made about each other?
Justin Timberlake wrote a song called Cry Me A River for Britney and Britney Spears wrote Everytime for JustinWhat was the name of the song that a broken up celebrity couple made about each other?
Justin Timberlake - Cry Me A River:


http://youtube.com/watch?v=N7p4mioawIA





Britney Spears - Everytime OR She Will Never Be Me: http://youtube.com/watch?v=fAXgGWY6X5E


http://youtube.com/watch?v=RzcSGG9EXBQ

cosmetics