(Photo Credit: Courtesy Southwest Airlines)

Talk about in-flight entertainment!

No headphones were needed when Gavin DeGraw performed earlier this week on a Southwest Airlines flight from Phoenix to Los Angeles as part of the company's "Live at 35? concert series.

"Live at 35? is pretty self explanatory, with artists surprising customers at 35,000 feet in the air.

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A Southwest spokeswoman said DeGraw, 36, sang in the front of the plane and engaged with customers and employees.

The "Not Over You" singer also took time to sign autographs for everyone down the aisle.

"He was such a pleasure to work with and has set the bar high for future "Live at 35? performances," the spokeswoman said.