A '10 Things I Hate About You' musical is headed to Broadway, and the creative team behind the project includes Carly Rae Jepsen and Lena Dunham. The stage adaptation of the 1999 teen romantic comedy will be scored by "Call Me Maybe" singer Jepsen and Ethan Gruska, and it will be based on a book by 'Girls' star Lena Dunham and veteran playwright and librettist Jessica Huang.