Big name celebrities did their best to lip sync and dance to The Bee Gee’s “Stayin Alive.” Watch the video below!

Celebrities include: Gwyneth Paltrow, Keira Knightley, Sarah Michelle Gellar, Hugh Grant, Teri Hatcher, Kevin Bacon, Hugh Laurie, Dr. Phil, Ryan Seacrest, Helen Mirren, Marc Anthony, Blue Man Group, Chris Kattan, Lisa Kudrow, Jason Biggs, Eric McCormack, Goldie Hawn, Michael Buble, Good Charlotte, Kirstie Alley, Chad Lowe, Emily Blunt, Rob Schneider, David Schwimmer, Miss Piggy, Helen Hunt, Lebron James, Shaquille O’Neal and Gillian Anderson!

There are one or two missing celebrities — feel free to share them in the comments!

“One of these men is the father. He pays me A LOT to keep it a secret!”

Potential celebrity fathers pictured (l-r): Vince Vaughn, Adrien Grenier, Patrick Dempsey, Nick Lachey, Leonardo DiCaprio, Marc Anthony, Ryan Phillippe, Freddie Prinze Jr., Christian Slater, Justin Timberlake, Jim Carrey, Ryan Seacrest, Orlando Bloom, Kevin Federline, Simon Cowell, Matthew McConaughey, Brad Pitt, Tobey Maguire (?), George Clooney.

Of note:

SO WHICH CELEBRITY DAD IS IT?

Scope out these pictures of American Idol host Ryan Seacrest and judge Simon Cowell giving back and serving in Africa.

Says Simon, “Having witnessed some of the appalling conditions in Africa firsthand, I’m especially proud that our show is offering Americans the chance to help those most in need.” Ensuring that American charities will equally benefit from these efforts was one of my priorities, and I’d like to thank our sponsors for their support and generosity in making this possible.”

Added Ryan, “I thought I was prepared for what I would see in Africa, but the level of poverty was beyond anything I could have imagined. You see it, you smell it, you taste it. However, despite the extreme conditions, you feel an incredible sense of hope from the people … especially the children.”

Of all the pictures, this one of Ryan doing his GQ pose cracks me up the most!!