Using a standing mixer, beat together all ingredients until smooth and
stiff peaks form, about 5-7 minute.
Directions on putting the cake together.
Place the purple cake layer onto the cake board,
Scoop about 1 C of frosting onto the cake layer and spread evenly.
Place the blue cake layer on top of the frosting.
Scoop 1 C of frosting onto the blue layer and spread evenly.
Place the green cake layer on top of the second layer or frosting.
Scoop 1 C of frosting onto the green layer and spread evenly.
Repeat steps with the Yellow, Orange and Red layer. Make sure you put the cake layers in the order of Purple, Blue, Green, Yellow, Orange and Red.
Scoop 2 C of the frosting into a medium bowl and mix in until combined several drops of black food coloring.
Scoop the black frosting into the piping bag fitted with a medium star tip.
Scoop 1 C of the frosting into a small bowl and mix until combined several drops of gold gel food coloring until combined.
Scoop the gold frosting into the piping bag fitting with a small star tip.
Using the remaining frosting in the mixing bowl, mix in a few drops of the kelly green food coloring.
Scoop all that frosting into the large piping bag fitted with the large star tip.