Gregg Alexander, the frontman for the 1990s band The New Radicals who left the public eye for 15 years before returning to it as a co-writer of the songs on the soundtrack to John Carney's indie Begin Again, surprised guests at The Hollywood Reporter's post-Hollywood Film Awards party on Friday evening with only his second public performance in the last 15 years. (His first came earlier this month at the Hollywood Music in Media Awards, at which he also took home a prize.)
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