Bill Cosby's star on the Hollywood Walk of Fame is vandalized -- again. It's not the only one

Someone defaced Bill Cosby's star in Hollywood on Monday night.

(CNN)For the second time in four years, Bill Cosby's star on the Hollywood Walk of Fame has been vandalized.

Someone spray-painted the words "Serial Rapist" across the star Monday night, said the Los Angeles Police Department, which is investigating the incident.
Cosby was found guilty in April of sexually assaulting Andrea Constand at his home in 2004. Although Constand's allegations are the only ones that have resulted in criminal charges against the actor-comedian, dozen of other women also have accused Cosby of sexual misconduct.
Someone scrawled a similar message on Cosby's star in 2014, CNN affiliate KTLA reported.
Cosby's star has been cleaned since the incident Monday, but his is not the only one to be targeted on the sidewalks of Hollywood. Here are a few more -- including some that may surprise you.

Donald Trump

In July a man smashed President Trump's star to pieces with a pickax.
The former reality TV star's star has been the target of repeated vandalism since Trump's turn to politics. The beleaguered Trump star also has been covered in stickers, splattered with paint and had a tiny wall built around it.
A Superman impersonator told CNN in 2016 he once saw a visitor allow his dog to relieve himself on the star.

Michael Jackson

This star actually honors a talk-radio host named Michael Jackson, not the late King of Pop, who has his own star with a symbol of a record. This star was spray-painted red in June, and it's not clear whether the vandals knew the difference. Either way, the pop star's daughter Paris Jackson shared a photo of herself scrubbing the star clean on Instagram, saying, "some people have no f***ing respect."

Sofia Vergara