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The Slacks

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The Slacks
The Slacks
Singing in "Attack of the 50 Foot Sister"
Gender: Male
Age: Unknown
Professional Information
Profession:
  Singers
Affiliations:
  Doofenshmirtz Evil Incorporated
Friends and Family
Boss:
Heinz Doofenshmirtz
Behind the Scenes
First Appearance:
  "Attack of the 50 Foot Sister"/ "Flop Starz" (voice)
Last Appearance:
  "It's No Picnic"/"Last Day of Summer" (voice)
Voiced by:
Danny Jacob (singing)

"Doofenshmirtz Evil Incorporated!"
— The Slacks[source]

The Slacks is a singing group that first appeared in "Attack of the 50 Foot Sister". They were first heard when they sung the Evil Jingle in "Flop Starz" and are heard in most other episodes. They usually accompany Doofenshmirtz and sing the Evil Jingle wherever he goes. They also apparently provide Doof's musical stings for his inator reveals.

Background Information

Appearances

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