Rebirth, I am the king of entertainment is a Manga/Manhwa/Manhua in english language, SUGGESTIVE series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Lin Ce, a big shot in the entertainment industry, was reborn, but found out that his girlfriend who became a big star wanted to break up with him, but no one knew that Lin Ce's mind was filled with endless entertainment works in another world! Zhao Siman: Lin Ce, I am a big star, and you are an ordinary person, we are not suitable, let's break up! Stop pestering me! Lin Ce: Well, you never know what you missed!