1.
Ellen took us back to 2003, when Jennifer Aniston was the very first guest on her show.
3.
Nicole Richie shared this adorable childhood photo of herself dressed up as a dancer.
4.
Speaking of adorable, check out Dolly Parton as a little kid (too cute).
6.
In honor of their anniversary, Sarah Michelle Gellar shared this photo of her and hubby Freddie Prinze Jr. at the 2000 MTV Movie Awards.
7.
Paul McCartney shared this striking photo of him and his late wife Linda.
8.
Elton John paid tribute to his late friend, Freddie Mercury.
9.
And finally, Madonna paid tribute to Michael Jackson, who would have turned 58 this week.