While Charlie Puth was ultimately selected, artists like also recorded demo vocals for the hook before the final version was locked in.

🎵 Song Feature Breakdown The song "See You Again" by Wiz Khalifa is globally recognized as the emotional tribute to the late actor Paul Walker . : Wiz Khalifa (who performs the rap verses).

See You Again (песня Уиза Халифы) - Википедия

The song was commissioned directly for the soundtrack of the film .

: Charlie Puth (who sings the famous chorus and plays the piano). 🎬 Context and Background

«See You Again» (рус. Снова увижу тебя) — песня американского хип-хоп-исполнителя Уиза Халифы, записанная совместно с Чарли Путом. Википедия

It plays during the final scene to provide a peaceful, symbolic send-off for Paul Walker's character, Brian O'Conner.