A young man's photograph with Warren Buffett and Paul McCartney casually sitting on a bench in the background is getting a lot of attention on the Internet.

The "selfie" was posted on Instagram late Sunday by user "speeeeeed_of_white." The user's profile page identifies the person in the picture as Tom White, "making the world a better place since 1997."

The Omaha World-Herald, the daily newspaper owned by Berkshire Hathaway, reports there were multiple sightings of Buffett and McCartney Sunday night in the Dundee section of Omaha.

McCartney is scheduled to give a concert in Lincoln, Nebraska Monday night. That's about a one-hour drive from Omaha.

According to the newspaper, Buffett and his daughter Susie had a 2-1/2 hour dinner with McCartney and two others at an Italian restaurant called Avoli.

Afterwards, they walked up the street for ice cream at eCreamery, which they ate on a bench outside the shop.

Here are some of other photos posted on Twitter of McCartney and Buffett, as storified by the World-Herald. (McCartney seems to be getting most of the attention.)

—By CNBC's Alex Crippen. Follow him on Twitter: @alexcrippen