Answers

[Masahiro Sakurai]

1:
As good as gold
Strike while the iron is hot
Go down like a lead balloon
Like a cat on a hot tin roof

2:
Imaginary friends
Mirage
Square root of negative one
Atletico Madrid

3:
Beige Chicks
The Emerald Mile
Ebony Swan
Cerulean Jasmine

4:
Estados Unidos de America and Mexico
Allegmagne and Frankreich
Indon(e/i)sia and Papua Nugini
Ruotsi and Finland

5:
Fleetwood Macklemore
Craig David Bowie
Radioheadele
Nirvanatalie Imbruglia