Premise: Katheryn Elizabeth Hudson ( born October 25 , 1984 ) , known professionally as Katy Perry , is an American singer and songwriter . Perry signed with Red Hill Records and released her debut studio album Katy Hudson under her birth name in 2001 , which was commercially unsuccessful . After adopting the stage name Katy Perry and being dropped by The Island Def Jam Music Group and Columbia Records , she signed a recording contract with Capitol Records in April 2007 .
Hypothesis: Katy Perry is the stage name of Katy Hudson since 2001.
Label: ENTAILMENT