Uploaded August 2026 | Updated September 2026, 13 hours ago

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Full performance: youtube.com/watch?v=RI6mGTM5IWc

Celebrate over five decades of legendary music with Chicago performing their explosive classic 25 or 6 to 4 live from Chicago: Live at 55.

Filmed in celebration of the band’s 55th anniversary, this powerful performance breathes new life into one of rock’s most iconic anthems. With its driving rhythm, signature horn section, and blistering guitar work, “25 or 6 to 4” remains a timeless showcase of Chicago’s unique fusion of rock, jazz, and brass-driven energy.

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