Robert Pattinson will be manning the phones at Friday's telethon for Haiti, joining Brad Pitt, Bill Clinton, Clint Eastwood, Jon Stewart, Matt Damon, Meryl Streep, Morgan Freeman, Julia Roberts, Leonardo DiCaprio, Nicole Kidman and Tom Hanks.
Added to the previously announced musical acts are Madonna and Beyoncé. Haitian artist Emeline Michel is also on the lineup.
The two-hour Hope for Haiti Now: A Global Benefit for Earthquake Relief, begins at 8 p.m. ET and will be hosted by Wyclef Jean in New York, George Clooney in Los Angeles and CNN's Anderson Cooper in Haiti.
Clooney and MTV Networks are collaborating with producers on the special.