This is the chorus of Katy Perry's "Firework." Notice how she uses Firework to explain the person she's singing about. What do you think she might be saying about that person by calling them a firework? Maybe they are powerful, colorful, beautiful, etc.
Source: Courtesy of ImCheEYiP on YouTube.com
This is a cover of David Guetta's "Titanium" by Madilyn Bailey. Just like you did with Katy Perry's song, take a look at the major metaphor of the song, which also happens to be the title as it was in the other case as well. She describes herself as Titanium. Obviously this girl is not made of metal, so what does she aim to tell listeners about herself by associating herself with that material?
Source: Compliments of Madilyn Bailey via YouTube.com