Barbara Walters
The View host donated $10 million to the New York-Presbyterian/Columbia University Medical Center. The large chunk of change will be split up between different initiatives.
Michael B Jordan, Toni Braxton & Nick Cannon
The Hollywood stars "Get Lucky for Lupus LA" at the nonprofit's 6th Annual Poker Tournament in Hollywood.
Pamela Anderson
The animal activist receives the Sam Simon Award at Mercy For Animals 15th Anniversary Gala.
Leona Lewis
The "Bleeding Love" singer shows her support for animals at the Mercy For Animals 15th Anniversary Gala.
Marg Helgenberger & Italia Ricci
The actresses team up with the city of Los Angeles to announce Sept. 5 as Stand Up to Cancer Day.
Kandi Burruss
As part of her non-profit organization, Kandi Kares, the Real Housewives of Atlanta star hosted a back-to-school supply drive for children and single mothers in need.
Jay Z
The artist also known as Shawn Carter will be headlining the 2014 Global Citizen Festival because he believes, "whether it be by raising awareness, getting involved, or educating ourselves, the goal to end extreme poverty by 2030 is possible."
Dave Matthews
The singer performs at the Children's Health Fund annual benefit at Lincoln Center. Co-founded by Paul Simon, Children's Health Fund provides pediatric mobile medical care to children in need across the country.
Apl.de.ap, will.i.am & Taboo
The Black Eyed Peas musicians headline the "Rebuild!" Benefit Concert for Typhoon Haiyan Survivors, held at the Greek Theatre in Los Angeles. The show was sponsored by VitaFrute and spearheaded by the Apl.de.ap Foundation, which is committed to promoting and empowering Filipino youth around the world.
Andy Roddick & Brooklyn Decker
The hot couple goes barefoot at the TOMS One Day Without Shoes event held to raise awareness about children's health and education needs.
Jonathan Cheban
After attending Kim Kardashian's wedding in Florence, Cheban steps out to support the Fresh Air Fund for underprivileged kids in NYC.
Cheryl Burke
The DWTS pro serves as the honorary host for "WE RUN THE GROVE," a free 10K run/walk to support the American Heart Association.
Nick Simmons
Gene Simmons' son steps out to support the JDRF L.A. 11th Annual "Imagine Gala."
Kate Flannery
The Office star helps raise money for the Tuberous Sclerosis Alliance while performing during the Comedy for a Cure event in L.A.
Jennifer Hudson
The Weight Watchers spokeperson poses with participants from Baltimore's B'More Fit Program during the Healthy Communities Grant Program launch event.
August: Osage County
They act good and do good. Stars of the Oscar frontrunner film Juliette Lewis, Julianne Nicholson and Dermot Mulroney attend a Q&A and charity screening of the highly anticipated drama benefiting Children Mending Hearts and the Episcopal School of Los Angeles. Also at the event were director John Wells, producer Grant Heslov, and fellow support-showing celebs Felicity Huffman, Emmy Rossum and moderator Mike O'Malley.
Gabriel Mann & Nick Wechsler
The Revenge costars step out to help fight HIV and AIDS at the annual AIDS Walk L.A.
Josh Duhamel
Fergie's man lends a hand to Valspar's Hearts and Hands for Humaity charity campaign, which helps families affected by natural disasters.
Angelina Jolie
The Oscar winner's big heart has translated into some big style with 100 percent of the profits from her Style by Jolie jewelry line going to fund schools around the world. See even more styles from the line!
Melissa Joan Hart
The Melissa & Joey star and her family participate in the Ronald McDonald House Charities of Southern California Walk for Kids 5K event, which provides support for families with children who are critically ill.
Ben Affleck
The Oscar-winner is honored with the Cinema for Peace Humanitarian Award at the 2013 Gala for Humanity for his organization the Eastern Congo Initiative, which helps spread awareness about the catastrophes and injustices occurring in the Democratic Republic of Congo.
Maria Shriver & Malin Akerman
The politico and preggers actress attend a pre-launch party for Half the Sky Movement: The Game, a web-based game that aims to raise awareness and donations to empower women and girls around the world.
Emma Roberts
The Scream 5 starlet flashes a smile while playing (THRED), a mobile game from the Coca-Cola Company and (RED) to help deliver an AIDS free generation by 2015.
Fergie
The Black Eyed Peas frontwoman presents the Cell Phones for Soldiers charity with with a 500,000 minute calling card at her Voli Light Vodkas holiday party, helping those fighting abroad stay connected with their families.