Katy Perry Used to Sing Backup for Christian Rock Band P.O.D.

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Katy Perry
wasn't always center stage.

A video is reemerging that shows the international music sensation as a backup singer for Christian rock band P.O.D. Perry performed on the group's 2006 track, “Goodbye For Now,” and is seen in both the music video for the song and their performance on The Tonight Show With Jay Leno.

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Back then, Perry wasn't wearing cupcake bras that shoot out whip cream. During her Tonight Show appearance all those years ago, she donned a conservative skirt, vest and quarter-length shirt. Perry looked a little edgier in P.O.D.'s music video but certainly not as scantily-clad as her current stage styles.

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Perry went onto become a Christian singer in her own right, going by her biological name Katy Hudson.

The 30-year-old "Roar" singer's parents are evangelical preachers but in an interview with Marie Claire magazine this year, Perry confessed that she does not identify herself as a Christian.

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"I don't believe in a heaven or a hell or an old man sitting on a throne. I believe in a higher power bigger than me because that keeps me accountable," she said. "I'm not Buddhist, I'm not Hindu, I'm not Christian, but I still feel like I have a deep connection with God. I pray all the time -- for self-control, for humility. There's a lot of gratitude in it. Just saying 'thank you' sometimes is better than asking for things."

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Perry had a recent run-in with religion when she made a $14.5 million deal with Archbishop Jose Gomez to turn Sisters of the Immaculate Heart of Mary convent into her new home. The nuns told ET they did not support Perry buying the property.

Here's their side of the story: