– Another case of stars crowdfunding cash from other stars: Entourage star Adrian Grenier has launched a Kickstarter campaign to find a mysterious whale, and it just received $50,000 from Leonardo DiCaprio's environmental nonprofit. The campaign just ended today, and the Hollywood Reporter says the Leonardo DiCaprio Foundation's donation came in during the last 24 hours and was the one that pushed the campaign over its goal of $300,000. (It ended at $405,937.) With the money, Grenier will produce a documentary following his search, alongside director Josh Zeman, for "52 Hertz," a "storied" whale that emits calls at the rare, extraordinarily low 52-hertz frequency. It's not even clear what species the whale is. Since the whale's calls are too low to be heard by fellow whales, he or she travels alone and has thus been dubbed "the loneliest whale in the world." The whale has actually never been seen, but has been caught by sonar a number of times since 1989. (Read up on other celebs who have turned to Kickstarter.)