Here are some examples:
* "Bohemian Rhapsody" is a famous song by Queen.
* I love listening to "Imagine" by John Lennon.
There are some exceptions:
* Short, well-known songs: Sometimes you don't italicize very short, familiar songs, like "Happy Birthday" or "Amazing Grace."
* Songs within a larger work: If the song is part of a play, musical, or opera, you might not italicize it.
If you're unsure, it's always best to err on the side of caution and italicize the song title.