`Grease is the word' in this Sweet Sixteen story! Mary-Kate and Ashley are working on a school production of Grease, but it's tricky: the sets get ruined, the costumes need to be redone and one of the leading actors is having trouble with the script!

Mary-Kate is VP of the drama club, and is determined that their production of Grease is going to be the best show ever!

Her boyfriend, Jake, has joined the club so she'll see more of him and everything is looking good but then disaster strikes. The set is flooded out, so it has to be re-done, the costumes are a total disaster and have to be re-made, and how can she help Sam, who has dyslexia and has trouble reading, learn his lines in time for the big night?

Ashley, meanwhile, has a huge shock when she runs (literally!) into her ex-boyfriend Ben, who's a new student at her school. She's really pleased to see him and they agree to be `just friends'.

So why does she feel so jealous when she sees him kissing her friend, Lauren? Would she really try to flirt with her best friend's boyfriend...?

This book features in the following series: Mary Kate And Ashley, Sweet 16, Sweet Sixteen .

There are 144 pages in this book. This book was published 2005 by HarperCollins Publishers .

Mary-Kate and Ashley Olsen have been huge international stars since the age of nine months, when they shared the role of Michelle in the sit-com `Full House'. With videos, video games, CDs, dolls, books, a fashion line and a magazine under their belts, their market impact is phenomenal.