MISCHA BARTON is determined NICOLE RICHIE's baby will turn out to be a future rock'n'roll star.

The O.C. actress recently gifted the pregnant socialite with a collection of infant Rolling Stones and AC/DC T-shirts in a bid to introduce the tot to legendary bands at an early age.

She says, "I got her a bunch of rocker tees for the baby, with different types of logos of rock bands on them and she loved them."

But the 21-year-old was careful not to select any pink or blue items because the Simple Life star still doesn't know the sex of the baby. She adds, "She wants it to be a surprise."