Tune in tonight for CNN’s Larry King Live telethon “Disaster in the Gulf: How You Can Help” which hopes to raise money for BP oil spill relief efforts. In addition to CNN’s television broadcast, Ryan Seacrest will host a “Social Suite” where he and other celebrity guests will interact with telethon viewers online.

Larry King’s show is encouraging people to use social media to spread the word about the telethon. Suggestions include changing your Facebook profile photo to the “Disaster in the Gulf” logo (pictured above) and sending tweets via Twitter to celebrities using the hashtag #CNNHelpGulf.

The star-studded two hour telethon event will feature Sting, Tim McGraw, Cameron Diaz, Kathy Griffin, Alyssa Milano, Ian Somerhalder, Robert Redford, Harry Connick Jr., Jenny McCarthy, Edward James Olmos, Chelsea Handler, Deepak Chopra, Pete Wentz, Ted Danson, Melania Trump, Ivanka Trump, Aaron Neville, Kerry Kennedy, James Carville and Mary Matalin, Anderson Cooper, Tyson Ritter, Lenny Kravitz, Philippe Cousteau, Justin Beiber, Richard Simmons, and Gloria Reuben.

“Disaster in the Gulf: How You Can Help,” airs tonight, June 21 on CNN from 8-10 p.m. ET. Funds raised from the telethon will be donated to United Way, The National Wildlife Federation, and The Nature Conservancy.