Tie Dyed Justin Bieber Cupcakes

I made these for Delaney's 7th birthday. I used a white cake mix and made it normally. Then I divided the batter and put different color food coloring in each bowl, put them in cupcake liners and baked.
I made buttercream frosting and dyed them purple. And put sprinkles on top.
The day before I took white chocolate chips and melted them and dyed pink and purple. I used a cake decorating bag and wrote out some Justin Bieber songs and other cute things. Let them dry.
After they were hard I put them on top of the frosted cupcakes.

Wilton's Buttercream Frosting:

1/2 C shortening
1/2 C (1 stick) butter, shoftened
1 tsp vanilla
4 C confectioners sugar
2 tbs milk