1. Happy by Pharell Williams
The word "Happy" is repeated multiple times throughout the song.
It makes the song emphasize the overall theme of the song, which is about finding joy and contentment. It promotes positivity and classifies the song as upbeat.
2. Count on Me by Bruno Mars
It makes the song stengthen the message of friendship and support, making the lyrics relatable and easy to remember. "You can count on me like 1, 2, 3" is the repeated lyrics in the chorus.
3. Shake It Off by Taylor Swift
It makes the song convey how we should not focus on negativity and criticism but instead on making ourselves feel happy no matter what others say. The repetitive nature of the phrase contributes to the light-hearted and catchy feel of the song.