Winfrey, Roberts to appear in global virus relief livestream

Oprah Winfrey, Julia Roberts and former President George W

LOS ANGELES -- Oprah Winfrey, Julia Roberts and former President George W. Bush will be among 200 star-studded participants in a 24-hour global livestream event.

Quincy Jones, Jennifer Garner, Common, Maria Shriver, Questlove, Yo-Yo Ma, Eva Longoria, Naomi Campbell and Alanis Morissette are expected to participate in the event.

Each participant will answer calls in their own way, whether through performing a song, sharing a story or offering a prayer.