Liam Neeson replaces Gibson in 'Hangover 2'

Who's replacing Mel Gibson in that infamous cameo in Todd Phillips' "The Hangover 2" (also known as "The Hangover Part II")? It's Liam Neeson! He will have a short appearance as a tattooist in the sequel.

Gibson was all set to shoot the part, but some members of the cast and crew on the film started pooping their pants and protested the decision, which caused the studio to drop Gibson for good.

Neeson, who worked with "The Hangover" star Bradley Cooper before, was available, and he's shooting the cameo in Thailand. Zach Galifianakis, Bradley Cooper, Ed Helms and Justin Bartha star in the film.

Neeson is showing up in a lot of stuff soon. He has a cameo in Paul Haggis' "The Next Three Days," he's got the lead in "Unknown," and he also appears in "Battleship." "The Hangover 2" arrives May 26, 2011.