United Kingdom, May 16 -- Jack Osbourne says celebrities should "shut the f*** up" when it comes to politics.

The media personality - son of late rocker Ozzy Osbourne and TV personality Sharon Osbourne - says stars' roles are to entertain people, and if they are passionate about current affairs, they should become politicians.

Jack, 40, and Sharon, 73, were in Washington D.C. on Friday (15.05.26) as Indiana GOP Rep. Victoria Spartz, 47, entered Ozzy's biography into the Congressional Record, and afterwards a TMZ reporter asked the pair: "Are you guys political at all?"

Jack replied: "You know what, I think celebrities just need to keep their mouth shut. Make entertainment. Entertain the people. Shut the f*** up."

The reporter then ask...