Lohan's sister auditions for 'High School Musical'

Lindsay Lohan's younger sister Ali is to follow her famous sibling into the world of showbiz - after auditioning for a part in 'High School Musical III: Senior Year'.

The 'Mean Girls' star's 14-year-old sister is said to be interested in a role as a "spoiled little princess" opposite teen heartthrob Zac Efron in the forthcoming Disney movie.