After becoming famous as a funnyman in Hollywood, Zach Galifianakis bought an apartment for a homeless woman he'd met 20 years prior. Renee Zellweger was moved by his generosity and furnished the woman's apartment, also throwing in groceries for life!
Okay, so he's KIND OF a douchebag ALL THE TIME. But Justin Bieber is the first (and only) celebrity to make over 200 wishes come true for the Make-A-Wish foundation. He also raised $1.1 million in typhoon relief money for Haiti in just a few days.
When she's not simulating sex acts on a stage, Miley Cyrus can be kind of a good person, inviting fans facing illness backstage to hang with her before and after her shows. She also recorded a personal video for an ill fan who passed away just days later in the summer of 2014.
The Shark Tank star and owner of the Dallas Mavericks paid for Monica and Leroy Wilkinson's 2014 dream wedding after learning of the financial struggles and medical hardships they'd faced since becoming engaged in 2009.