Emile Hirsch is on his way to Africa to climb the continent's highest peak.
The "Milk" and "Into the Wild" star is joining Jessica Biel , Lupe Fiasco, Isabel Lucas and Elizabeth Gore for a weeklong trek up Mount Kilimanjaro.
The Summit on the Summit expedition, which begins Thursday, aims to use star power to help raise awareness about the need for clean water worldwide.
The 24-year-old Hirsch says the climb combines "an epic adventure with an educational process on the global water crisis." Fans can follow the climb online and donate as little as a dollar to provide clean water to those who need it.
Hirsch says he's ready for the more than 19,000-foot challenge, saying, "Put this on the books: I'm making it to the top."
A baby girl for McConaughey
Actor Matthew McConaughey and his girlfriend have announced the birth of their second child — a girl.
The actor says on his Web site that Vida Alves McConaughey was born Sunday. She weighs 7 pounds, 7 ounces.
McConaughey says his girlfriend, model Camila Alves, is "recovering wonderfully" and the couple has welcomed "this little lady into our family."
The couple had a son, Levi, in 2008.
McConaughey spokesman Alan Nierob confirmed the Web posting in an e-mail on Monday.
British GQ names worst, best dressed
It's a poll victory, of sorts. British Prime Minister Gordon Brown has been named the worst-dressed man of the year by the British edition of GQ magazine.
The magazine said Brown, who faces an election this year, is "anything but a prime example of British style." Brown's signature look is a dark suit, slightly rumpled.
Wild-haired comedian Russell Brand was second on the worst-dressed list, while French President Nicolas Sarkozy was third.
"Twilight" heartthrob Robert Pattinson was named best-dressed man by the magazine on Monday.
The best-dressed top 10 also includes the members of reunited boy band Take That, James Bond star Daniel Craig and the dapper animated star of the movie "Fantastic Mr. Fox," voiced by George Clooney .
Another year older
Today's birthdays: Former Vice President Walter Mondale , 82... actor Robert Duvall , 79... talk show host Charlie Rose , 68... actress Diane Keaton , 64... actor Ted Lange , 62... actress Pamela Sue Martin , 57 ... rock singer Marilyn Manson , 41... actor Bradley Cooper , 35... actress January Jones , 32... actress Brooklyn Sudano , 29.