PHILADELPHIA (WPVI) -- The Arden Theatre hosted a benefit concert for 6-year-old Caleb O'Brien on Sunday.
Caleb O'Brien has been diagnosed for a second time with Pre B-Cell Acute Lymphoblastic Leukemia.
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There was a silent auction along with performances from twenty of Philadelphia's favorite vocalists.
All proceeds raised at the benefit go directly to Caleb and his family as they continue his demanding treatment.
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For more information, visit: Concert4Caleb.com