Giurami means "swear to me" or "promise me". It's the imperative form of the verb giurare (to swear/to promise) combined with the direct object pronoun mi (me).
In the song, GionnyScandal uses this word in a heartfelt plea: "Giurami che non sarai mai finita" (Swear to me that you will never end). It's a powerful and emotional word that conveys deep commitment and a desire for an eternal connection, making it very engaging and memorable in the context of a love song.
"Sei Così Bella" ("You're So Beautiful") is GionnyScandal's love letter to someone he can't stop looking at. He wakes up every morning in Italy thinking of her, falls asleep counting her heartbeat, and admits she's almost too beautiful for him.
The chorus builds it into something bigger than a compliment: every star gets shy and stops shining next to her, and he can't shake one thought no matter how many times he tries to say it. He promises this feeling is forever, that these are the best years of their life, and that even the sun only looks good because it reminds him of her.
Then the song gets playful. He jokes about her Instagram and WhatsApp stories, telling Zuckerberg himself that the best story going is the one he's living with her. It's a big, sincere declaration wrapped in a very modern joke.