Buffett’s actions were met with sharp criticism by some.
"Wow. One of the worst renditions of all time. Awful," New England Patriots color analyst Scott Zolak tweeted.
"Are Jimmy Buffet (sic) concerts as bad as his national anthem?" People quoted one social media poster.
"Bring in Danny DeVito for the Super Bowl. America is ready," tweeted Foster the People.
A representative for Buffett "did not immediately return a request for comment," Fox News reported.
Here is a sampling of reactions posted on social media.