Chants of "We want Trump" were also heard emanating from the crowd earlier in the day.
Footage showed the congregation of peaceful counter-protesters singing in unison while surrounding the protesters, who continued to demonstrate in their fenced-off area.
While some people in the crowd held American flags, others wore clothing with patriotic messaging. One student's shirt, for example, read, "I hate terrorists."
Cheers were heard when the counter-protesters reached the "land of the free" line of the anthem, with many putting extra emphasis on the latter word.
Earlier in the day, a segment of the crowd chanted "We want Trump" as one person held up one of the former president's trademark flags.
The scenes out of Ole Miss were symbolic of a shift in counter-protester tactics at universities across the country.
Over the past week, a growing number of those opposed to the occupation of their campuses by pro-Palestinian demonstrators have taken it upon themselves to highlight their American patriotism.
At the University of North Carolina Chapel Hill, for example, a group of fraternity brothers went viral for protecting the American flag after it was returned to its rightful place on the campus flagpole.
One of the students involved, Daniel Stompel, said it was "good to see people still put their bodies on the line, their mind and soul on the line, to protect this flag."
"I was like, 'I'd die for this flag,' and everybody was like, 'yeah, if they get any closer we're gonna start throwing hands," he added. "They're gonna have to tear me off this flag by my dead body."
Stompel suggested that the footage of him and his buddies had received so much attention because under the current Democratic administration, standing up for America had become so uncommon that people were not used to seeing even the simplest act of patriotism, especially on a university campus.
