Really impressive.

Chords are here

Song list spoiler:

Billie Jean (Michael Jackson)
Jizz in my pants (Lonely Island)
Wannabe (Spice Girls)
Mario Kart Love Song (Sam Hart)
Over the Rainbow (Judy Garland)
Girlfriend (Avril Lavinge)
No woman no cry (Bob Marley)
Never gonna give you up (Rick Astley)