GOT7 X NCT 127 - Hey, Come On! (SBS Gayo Daejeon Special Stage)
Doyoung X Sunday - Still (SMTOWN LIVE)
AKMU X Jinyoung X Jisoo X Doyoung - Winter Child (Inkigayo Special Stage)
Jinyoung X Jisoo X Doyoung - Someone In The Crowd (Inkigayo Special MC Stage)
Doyoung X TWICE Jihyo - All For You (KBS Music Bank Special Stage)
Doyoung X Jaehyun - To You (Show Champion MC Special Stage)
Doyoung X Kim Minha - Fallin'
NCT U Doyoung & Haechan - Maniac
Doyoung X Various Artises - NOW N NEW 2021
Baekhyun X Doyoung - Doll
NCT U Taeil, Doyoung, Jaehyun & Haechan - Coming Home
SMTOWN - This is Your Day (for every child, UNICEF)
Doyoung X ROCOBERRY - Don't Say Goodbye
NCT U Taeil, Doyoung & Jaehyun - Timeless
Doyoung & Sejeong - Star Blossom
SMTOWN X Steve Barakatt '너의 목소리 (Sound of Your Heart)' (SM STATION)
NCT Doyoung X Red Velvet JOY - First Christmas ('SBS Inkigayo Music Crush' Collab Project)
Doyoung - Unable to Love ('Dear X Who Doesn't Love Me' OST)
Doyoung - A Little More ('Soundtrack #1' OST)
Doyoung - Like a Star ('Yumi's Cells' OST)