What's the Kennection? #49

Since the plural form was dropped in 1981, what color is the nickname for Stanford University's sports teams?

A Best Buy in Baltimore was besieged by fans in 2014 after it featured in what NPR podcast?

In what 2010 duet with Beyoncé does Lady Gaga chew out a friend who calls her up in a noisy club?

What's the top-level USDA grade for beef, higher than "Choice" or "Select"?

With a January 1940 check for $22.54, Ida May Fuller of Vermont became the first American ever to receive what?

What's the "Kennection"?