Josh Groban cameo on Jimmy Kimmel Live by Michael Desmond/ABC Josh Groban cameo on Jimmy Kimmel Live by Michael Desmond/ABC

After watching Jimmy Kimmel's hilarious post-Oscars " I'm F--king Ben Affleck" music video, I had one lingering thought I just couldn't put to rest: How in the world did they get stick-in-the-mud Harrison Ford to play along?

Apparently, all they had to do was ask. When Affleck learned that Ford found the humor in an earlier video, in which Kimmel's girlfriend Sarah Silverman confessed to getting down with Matt Damon, they approached the Indiana Jones star and found him more than willing to play a part. Ford was just one in a shockingly large group of celebs, including Brad Pitt, Robin Williams, Cameron Diaz and Josh Groban, who were eager to make an appearance in Kimmel's jokingly vengeful retort.

Even with all that star power on hand, shooting the clip took quite a while. New York's Daily News reports that the scene in which Kimmel and Affleck almost kiss required 10 takes because the pair couldn't stop laughing. But all the hard work was worth it - the video has already been viewed more than eight million times on ABC.com and YouTube. - Adam Bryant

POLL: Whose "effing" video is funnier, Sarah's or Jimmy's? Vote here.