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Passengers on a flight from St. Louis to Seattle got an unexpected pick-me-up when jazz saxophonist Dave Koz and bandmates held an impromptu jam session in the aisle while the plane was stuck on the tarmac hundreds of miles from their final destination.

At a Glance:

Dave Koz and band performed on a delayed flight to Seattle

Musicians played Stevie Wonder’s “You Haven’t Done Nothin’”

Passengers joined in with smiles, videos went viral online

Impromptu jam session turned frustration into joy

It happened Aug. 11, when Koz and fellow musicians on the Dave Koz & Friends Summer Horns Tour were headed to Seattle for two days of shows. What was supposed to be a direct flight was beset by delays, including having to divert to Boise, after flight crew members timed

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