Join Mary-Kate and Ashley Olsen and their friends for a Christmas party in the high mountains of Vail, Colorado where they ski, snowmobile, and go sledding.

Fearing that their sleepover party will be ruined if the reluctant Brighton leaves, Mary-Kate and Ashley prepare music, games, scary stories, and party favors to encourage Brighton to stay overnight.

Join Mary-Kate and Ashley Olsen and their friends for a birthday party that turns out to be a big surprise for both girls.

In its 114th year, Billboard remains the world's premier weekly music publication and a diverse digital, events, brand, content and data licensing platform. Billboard publishes the most trusted charts and offers unrivaled reporting about the latest music, video, gaming, media, digital and mobile entertainment issues and trends.

A biography of the teenaged twin sisters who began their acting careers at the age of nine months in the television series "Full House;" became producers and stars of their own videos, CDs, and books; and have recently started a clothing line and magazine.

In its 114th year, Billboard remains the world's premier weekly music publication and a diverse digital, events, brand, content and data licensing platform. Billboard publishes the most trusted charts and offers unrivaled reporting about the latest music, video, gaming, media, digital and mobile entertainment issues and trends.