Ice Bucket Challenge Roundup: Robert Pattinson, Iggy Azalea + More Raise ALS Awareness [VIDEOS]

The Ice Bucket Challenge has become synonymous with gorgeous celebrities dousing themselves with water. There are many ways to raise awareness for various charities, but this has got to be one of the best!

Stars must agree, because they've been participating in huge numbers to raise awareness for ALS, also known as Lou Gehrig's disease. We previously did a roundup of 30 celebs who took part in the social media phenomenon, and now we're back to do another roundup to share some of the best videos.

For more information on ALS, how to donate and how you, too, can raise awareness, visit the ALS Association. And of course, check out the Ice Bucket Challenge vids below!

Robert Pattinson took the challenge -- and shared it through Zac Efron's YouTube channel. What a beautiful partnership.

Muppets can participate, too!

Nicole Scherzinger took the challenge beachside.

Brendon Urie of Panic! at the Disco went for it onstage at a concert.

Iggy Azalea took the ice water like a champ in her neon bikini.

Cheryl Cole nominated Liam Payne. Will he follow through?!

Nick Jonas took the cinematic route for his video.

Didn't anyone tell Gavin DeGraw it's cheating if you wear a hat!

Imagine Dragons' Dan Reynolds also took the challenge on stage!

Sheryl Crow was equipped with a shower cap and goggles.

Connie Britton took a big risk with that white shirt!

Sophia Bush had some difficulties, but she got iced in the end!

What's more shocking, a bath of ice water or Gwyneth Paltrow nominating her ex-husband Chris Martin?

Another surprising nom: Vin Diesel's Putin!