She was 34 years old at the time of auditioning and was from Los Angeles, California, U.S.
For the blind auditions she chose to sing "One of Us" by Joan Osborne. Adam Levine turned his chair around and Katrina defaulted to his team.
For the battle rounds Adam chose to team her up with fellow contestant Angel Taylor and gave them the song "Bleeding Love" by Leona Lewis. After the performance Adam chose to save Katrina and Angel was eliminated from the competition.
For the live shows she chose to sing "When You Were Young" by The Killers. Katrina was in the Bottom Three and sang "Don't Speak" by No Doubt as her last chance performance and was given Adam's Vote.
For the quarterfinals she chose to sing "Jar of Hearts" by Christina Perri. She also performed with Adam and the rest of her team to "Instant Karma!" by John Lennon. Katrina was in the Middle Two and sang "F**kin' Perfect" by Pink as her last chance performance and was given Adam's Vote. She went through to the next round with Tony Lucca.
For the semi-finals she chose to sing "Killing Me Softly With His Song" by Roberta Flack. She also performed with Team Adam and Team Cee Lo to "All These Things That I've Done" by The Killers. Tony gained the most votes and advanced to the finals whilst Katrina was eliminated.
In the finals she sang "Bitter Sweet Symphony" by The Verve with Chris Mann and Lindsey Pavao.
|Blind Auditions||"One of Us"||Joan Osborne|
|Battle Rounds||"Bleeding Love"||Leona Lewis||Angel Taylor|
|Live Shows||"Tonight, Tonight"||The Smashing Pumpkins|
|Live Shows||"Don't Speak"||No Doubt|
|Quarterfinals||"Jar of Hearts"||Christina Perri|
|Quarterfinals||"Instant Karma!"||John Lennon||Team Adam|
|Semi-finals||"Killing Me Softly With His Song"||Roberta Flack|
|Semi-finals||"All These Things That I've Done"||The Killers||Team Adam and Team Cee Lo|
|Finals||"Bitter Sweet Symphony"||The Verve||Chris Mann and Lindsey Pavao|