How to get Shiny Cake Hat Pikachu and Party Hat Pikachu in Pokemon GO?

Pokemon GO is celebrating its 7th anniversary, and they have introduced a new event in the game.

Pokémon Go event Pokémon list: All costume Pokémon, including party hat Pokémon, flower crown Pokémon and every Pikachu costume explained

Shiny Pikachu with event hat live in the wild : r/TheSilphRoad

Pokémon GO's 7th Anniversary Party - Leek Duck

Pikachu - #0025 - Pokémon GO

Shiny Pikachu (cake custome)

Pokémon Go Day: How to get Party Hat Pikachu now!

Pokémon Go Pikachu Various Customs Normal (NOT SHINY )~ same day delivery~

Pokémon GO Is Celebrating Its 7th Anniversary with Events & Rewards

Pikachu, Pokémon GO Wiki

MINI ACCOUNT Zapdos Moltres Pikachu Cake Shiny Riolu Articuno Squirtle Red Hat

The Pokemon Go Sixth Anniversary celebration has kicked off

Celebrate Good Times during Pokémon GO's 7th Anniversary Party

Can TCG Hat Pikachu be Shiny in Pokémon Go? - Polygon

7th Anniversary Event Special Service - Pokemon GO Service