"I`d want to be Zac Efron... so I can be in Hairspray." -Shia LaBeouf

"Transformers, Shia was a m a z i n g in that." -Zac Efron

Reasons
Because they both meantion each other!
Because they are both hotties!
Because they both take their girlfriends on vacation.
Because they are both Jewish.
Because they have both worked with Amanda Bynes.
Because they both hosted TEENick.
Because they've both been to the 2007 KCA's
Because they've both been to tht 2007 MMA's
Because they were both at ShoWest 2007
Because they have both been on Jay Leno.
Because they have both kissed their co-stars.
Because they have the same taste in shoes.
Because they have the same taste in sunglasses.
Because they have both been in Vanity Fair recently.
Because they were both at the Young Hollywood Awards 2007.
Because they were both at the Teen Choice Awards 2007.
Because they are both talented young actors.
Because they are the next big stars of the future.
Because they are both Disney stars.
Because they make the same poses.
Because they watched each other's movies.
Because they are Zac Efron and Shia LaBeouf. DUH. 'Nuff said.
Because they could be brothers.
Because they both are the "it" boys of the year.
Because they have the best shipper name.
Because they both have great senses of humor.
Because they are around the same age.
Because they were both child actors.
Because they have both been in high school musicals!
Because they are both into penguins.
Because they have both starred on Disney comedies.
Because they have both starred in Disney Channel Original Movies.
Because they can give each other hair tips.
Because they both look amazing with thier co-stars!
Because they both like reading.
Because they both played characters who are into golf.
Because they both have AMAZING style!
Because they both look good together in icons.
Because Zac thinks Shia is amazing.
Because Shia wants to transform into Zac.
Because they both appreciate each others work.