The Olsens Turn 22!

People reports that they will be celebrating their 22nd birthday at Bonnaroo Music Festival in Nashville, Tennessee, with a lineup of famous music stars like Kanye West and Metallica. This celebration will be very different than their quiet 21st, a quiet family dinner in Hollywood.

It's been a long time since the notorious twins, Mary-Kate and Ashley Olsen first starred in the hit family series, Full House. Since then, the world's most recognizable twins have become self-made multimillionaires with their own production company, Dualtstar, at age 6, and countless film and TV roles, including the teen TV series, So Little Time, the 2004 film, New York Minute, and Mary-Kate's hit role on the HBO series, Weeds.