(CNN) Protesters outside Philadelphia International Airport on Sunday broke into a rendition of Woody Guthrie's folk classic "This Land Is Your Land" in solidarity with detained travelers on Sunday.

Protesters in #Philly singing "This Land is Your Land" pic.twitter.com/I1TXJXpNvg — Sarah L. Jorgensen (@SarahLJorgensen) January 29, 2017

The song came during a protest against President Donald Trump's executive order , which suspended refugees as well as travel from seven Middle Eastern countries. The rapid timing of the order left scores of people from those seven countries stranded in legal limbo at US airports.

"This Land Is Your Land" was originally recorded in 1944 and was written as a retort to "God Bless America," which irritated Guthrie, according to NPR

Protesters in Philadelphia also chanted "no hate, no fear, refugees are welcome here."

Police shut down two lanes of traffic to accommodate the crowd while passing vehicles honked in support.