They are celebrities who share the same birth year. However, nature - and every other factor you can imagine- have treated them differently over the years.
Dianna Agron and Lindsay Lohan - 26 years
Robert Downey Jr. and Charlie Sheen - 47 years
Keanu Reaves and Steve Hofmeyr - 48 years
Kristin Davies and Sarah Jessica Parker - 47 years
Ellen DeGeneres and Madonna - 54 years