Lot of karaoke songs are given free online. Some of them have good quality, with music and on-screen lyrics which are ready to play on your computer. Why it was given free? It is because that is the great way to attract more traffic to their site when they are advertising for their product. The most common product that is usually advertised is the product that is directly related to karaoke such as converter application, midi player, ripper application and some plugins. But the problem here is how to find a site that offers free karaoke songs for download.
The most common things to do is google it out, or search through yahoo or msn or other search engine. You must be specific in your keywords while searching to get the desired results. For example if you put "free karaoke", this will give different results than "download free karaoke songs" keywords. So "download free karaoke songs" keywords will give more desired results.
Once you have entered the right keywords, the search engine will display all sites related to karaoke songs. Study carefully the site. Some website offers free karaoke songs for download but it contains malicious contents. Some embedded with spyware and malwares. So be careful with this. Consult other resources or research some forums which has a topic about karaoke. You can get valuable information from them.
Some site also provide karaoke free download songs but you will click lot of links before you get to the download page.