Lets start with probably the most famous twins around, Mary-Kate and Ashley Olsen. The two shot to stardom since the young age of 1 in the series Full House and have not skipped a beat since.
Another famous duo, Tia and Tamara Mowry shot to fame in the early 90's with their popular show Sister, Sister. The two have since blossomed into beautiful women and have always maintained their adoring sense of humor.
Slightly less known are the twins from Disney's popular show The Suite Life of Zack and Cody. Adorable wins Dylan and Cole play opposite roles in the comical pre-teen sitcom.
Identical twins Benji and Joel Madden have the same taste in girls one having dated socialite Paris Hilton while the other dated and eventually married former BFF, socialite Nicole Richie.
Best know for their rolls as Fred and George Weasley in the Harry Potter series of films, Oliver and James Phelps rose to fame in 2000 and are currently to star in the sixth installment Harry Potter and the Half Blood Prince premiering July 2009.
Giovanni Ribsi has a fraternal twin sister, Marissa Ribisi.
Scarlett Johansson has a twin brother Hunter who is almost as famous as she is. He has been featured as one of People's most eligible bachelors.
Jacqueline and Jill Hennessy are identical, and it shows.
First presidential twins Barbara and Jenna Bush are fraternal. They don't even share the same hair color.
Jeremy London and his twin brother Jason London.
Pacific Coast News
Ashton Kutcher and his twin brother in school photos.
'Bachelor' Brad Womack and his twin brother/business partner Chad are the spitting image of each other!
Celeb’s twins sometimes are known, other times, not so known.