I wrote a letter to the sky saying maybe one day you'll get to kiss me

from Frank Ocean – Acura Integurl Lyrics on Rap Genius

He’s proclaiming that he’s going to make it big one day (become a star in the sky).

However, this line has nothing to do with being gay. It say “I wrote a letter to the sky saying saying maybe one day you’ll get to kiss me,” similar to the iconic line in Jimi Hendrix’s Purple Haze:

‘Scuse me while I kiss the sky

He wants to reach the stars and become a success.

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