My guess would be 당신 mean the montage song "That's All 당신 Need to Know", and not Donny Osmond's 또는 something. Anyway, that's the title; the song's lyrics were written 의해 봉고차, 반 Partible and the 음악 was 의해 Louis Fagenson. It was sung 의해 Rachael Lampa and Joe McIntyre.
