Photo: NBC News.

Lately it seems that everyone from Matt Lauer to Martha Stewart has signed up to be drenched with ice water in the name of charity. The ALS Ice Bucket Challenge—a campaign that started as a way to raise awareness (and cold hard cash) for Lou Gehrig’s disease—has been filling up news channels and Instagram feeds far and wide proving that this Summer, cooling off is the hottest way to give.

Here are our top ten best and worst (Bieber, this means you) celebrity contributions to the cause:

1. Chris Pratt

Video: Youtube.

2. Lebron James

Video: Youtube.

3. Rob Riggle, Horatio Sanz, Steve Higgins, The Roots, and Jimmy Fallon

Video: Youtube.

4. Conan O’brien

Video: Youtube.

5. Ashton Kutcher and Wilmer Valderrama

Video: Youtube.

6. Jack Black

Video: Youtube.

7. Chris Brown

Video: Youtube.

8. Justin Bieber

Video: Youtube.

9. Bill Gates

Video: Youtube.

10. George Takei

Video: Youtube.

Daytime talk shows and those that host them have a love/hate relationship with Halloween. Love in that ratings usually tick up and hate in just about every other aspect. There’s the pressure to out-do the previous year’s costume on top of enduring social media’s judgmental gaze. Go big, you’re going cumbersome, and it’s a long hour sitting (or standing) on live national television. Go small, you’re forgettable, step to the side, wench. And while tomorrow is sure to not disappoint, we’d like to step in a time machine and take a look back at some of daytime’s heavy hitters doing Halloween proud. Here we’ve amassed some legends of the field, being, well, legendary.

Barbara Walters: