"Comedy Roast" is a type of comedy event where a celebrity is targeted for humorous insults and jokes by a panel of comedians.
Different roasts have different theme songs, often incorporating music that reflects the personality of the roastee or the overall tone of the event.
For example, the popular Comedy Central roasts often use original songs tailored to each roast.
If you're thinking of a specific roast, please let me know the name of the event or the celebrity being roasted, and I might be able to tell you the theme song!