An intimate Phoenix debut in 1999 proved'she was a powerhouse'

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A teenage Beyoncé Knowles led Destiny's Child through a performance of their early singles for a sold-out audience

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the rotating stage of the 2,650-person capacity Celebrity Theatre in Phoenix as part of a radio event

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This was a long time before she was headlining stadium tours.

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In September of that year, Beyoncé had become 18 years old.

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She was joined onstage by other founding members LaTavia Roberson

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Kelly Rowland, and LeToya Luckett respectively.

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At that time, Destiny's Child were primarily recognized for their three hit singles:

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which went on to become the most popular song in the country during the week of March 18, 2000.

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