THEY ARE ALSO ONE HALF OF A MATCHING SET OF TWINS

Mary Kate and Ashley Olsen; Aly and AJ Michalka and also Tegan and Sara Quin isn't the only matching set of twins in the entertainment industry.  Here are more matching set of twins that most people probably never knew existed.

Alanis and Wade Morissette

Giselle and Patricia Bündchen

Linda and Leslie Hamilton

Parker and Chris Posey

Scarlett and Hunter Johansson